Space Shuttle To Launch July 11 After Successful Leak Test

In this image provided by NASA the afternoon sun creates shadows on space shuttle Endeavour's external fuel tank as workers remove the seal from the Ground Umbilical Carrier Plate on the tank Wednesday June 24, 2009. A hydrogen leak at the location during tanking for the STS-127 mission caused the launch attempts to be scrubbed on June 13 and June 17. NASA plans a fueling test Wednesday July 1, 2009 of shuttle ahead of July 11 launch attempt. (AP Photo/NASA)

From Yahoo News/Space.com:

NASA will try to launch the space shuttle Endeavour on July 11, nearly a month late, after plugging a potentially dangerous hydrogen gas leak, top mission managers said Wednesday.

Endeavour successfully passed a leak check during a fueling test at its seaside Florida launch pad today, setting the stage for a planned 7:39 p.m. EDT (2339 GMT) liftoff toward the International Space Station on July 11, said Mike Moses, who leads the shuttle's mission management team.

NASA initially tried to launch Endeavour on June 13, then again on June 17, but the hydrogen gas leak in the shuttle's external fuel tank thwarted both attempts.

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Humans Could Regrow Their Own Body Parts Like Some Amphibians, Claim Scientists

From The Telegraph:

Regenerating your own amputated arms and legs, broken spines and even damaged brains is the stuff of superheroes - but it could one day be a reality, claim scientists.

Researchers looking into how salamanders are able to to regrow their damaged bodies have discovered that the "almost magical ability" is closer to human healing then first thought.

They believe that one day they will be able to completely unlock the secret and apply it to humans, reprogramming the body so it can repair itself perfectly as if nothing had happened.

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Laser Light Switch Could Leave Transistors In The Shade

This experimental set-up was used to show that it is possible to make a transistor that acts using laser beams, not electric currents (Image: Martin Pototschnig)

From New Scientist:

An optical transistor that uses one laser beam to control another could form the heart of a future generation of ultrafast light-based computers, say Swiss researchers.

Conventional computers are based on transistors, which allow one electrode to control the current moving through the device and are combined to form logic gates and processors. The new component achieves the same thing, but for laser beams, not electric currents.

A green laser beam is used to control the power of an orange laser beam passing through the device.

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Volcano's Eruption Creates Colorful U.S. Sunsets

Russia's Sarychev Peak volcano erupted June 12, prompting goregous sunsets like the one in this photo taken by Rick Schrantz of Nicholasville, Kentucky on June 29. Credit: Rick Schrantz

From Live Science:

Many people in the United States and Europe are seeing gorgeous lavender sunsets lately thanks to the eruption more than two weeks ago of Russia's Sarychev Peak volcano.

The volcano blew its top June 12, generating a remarkable shock wave in the atmosphere seen in a photo taken by astronauts. It also hurled massive plumes of sulfur dioxide into the air, and that material has been circling the globe.

Deep purple hues and ripples of white characterize the spectacular views the past few evenings.

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Orange Juice Worse For Teeth Than Whitening Agents, Study Finds

From Science Daily:

ScienceDaily (July 1, 2009) — With the increasing popularity of whitening one’s teeth, researchers at the Eastman Institute for Oral Health, part of the University of Rochester Medical Center, set out to learn if there are negative effects on the tooth from using whitening products.

Eastman Institute’s YanFang Ren, DDS, PhD, and his team determined that the effects of 6 percent hydrogen peroxide, the common ingredient in professional and over-the-counter whitening products, are insignificant compared to acidic fruit juices. Orange juice markedly decreased hardness and increased roughness of tooth enamel.

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Sprawl! Is Earth Becoming A Planet of SuperCities?

From The Daily Galaxy:

Imagine a planet dominated by cities like Mega-City One, a megalopolis of over 400 million people across the east coast of the United States, featured in the Judge Dredd comic or "San Angeles," formed from the joining of Los Angeles, Santa Barbara, San Diego, and the surrounding metropolitan regions following a massive earthquake featured in the 1993 movie "Demolition Man."

Don't hold your breath: the 21st century will soon have 19 cities with populations of 20 million or more.

The history of the human species is a history of migration. In 1000 A.D. Cordova, Spain was the largest city. By 1500, Bejing began its rise to power, and 300 years later it was the first city to be over a million people. By 1900 London emerged the world's supercity with over 6 million people. In 1950 New York was proclaimed the first "megacity" with a population of over 10 million people in the greater metropolitan area.

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Amazing Pictures Of The Seal Who Narrowly Escaped Becoming A Snack For A Killer Whale

Evasive action: Seal rolls onto its back as the whale,
water cascading down its back, decides to end pursuit

From The Daily Mail:

These dramatic pictures reveal the stunning hunting skills of a killer whale and show the extremes the mammals will go to in order to catch its prey.

Regarded as one of the deadliest predators of the seas, this killer whale has mastered the art of beaching itself in order to hunt young seal pups in shallow waters.

Captured on the coast of Patagonia in Argentina, this amazing sequence of images show how a lucky young seal evaded the giant mammal as it emerged from the icy waters.

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Firefox Aims to Unplug Scripting Attacks

Photo: Patsy attack: An attacker (shown in red) can use cross-site scripting to force a user's computer (left) to attack another system (middle), just by visiting a seemingly innocent website (top). Credit: Ha.ckers.org

From Technology Review:

How websites can block code from unknown sources.

Sites that rely on user-created content can unwittingly be employed to attack their own users via JavaScript and other common forms of Web code. This security issue, known as cross-site scripting (XSS), can, for example, allow an attacker to access a victim's account and steal personal data.

Now the makers of the Firefox Web browser plan to adopt a strategy to help block the attacks. The technology, called Content Security Policy (CSP), will let a website's owner specify what Internet domains are allowed to host the scripts that run on its pages.

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The Genetic Secrets Of Younger-Looking Skin

Photo: The secrets of youthful skin are being revealed (Image: Laurence Mouton/Photo Alto/Jupiter)

From New Scientist:

GENETIC analyses of human skin are revealing more about what makes us look old. As well as throwing up ways to smooth away wrinkles, the studies may provide a quantifiable way to test claims made for skin products.

In the past, cosmetics companies relied on subjective assessments of skin appearance, and changes in its thickness, colour and protein composition, to evaluate the effectiveness of their products and work out the quantities of ingredients needed to get the best results. "It was totally hit and miss," says Rosemary Osborne of Procter and Gamble in Cincinnati, Ohio.

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Most Complete Earth Map Published

An image of Death Valley - the lowest, driest, and hottest location in North America - composed of a simulated natural color image overlayed with digital topography data from the ASTER Global Digital Elevation Model.

From BBC:

The most complete terrain map of the Earth's surface has been published.

The data, comprising 1.3 million images, come from a collaboration between the US space agency Nasa and the Japanese trade ministry.

The images were taken by Japan's Advanced Spaceborne Thermal Emission and Reflection Radiometer (Aster) aboard the Terra satellite.

The resulting Global Digital Elevation Map covers 99% of the Earth's surface, and will be free to download and use.

The Terra satellite, dedicated to Earth monitoring missions, has shed light on issues ranging from algal blooms to volcano eruptions.

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Missing Moon-Landing Videotapes May Have Been Found

From FOX News:

Just in time for the 40th anniversary of the first moon landing, NASA may have found the long-lost original Apollo 11 videotapes.

If true, as Britain's Sunday Express reports, the high-quality tapes may give us a whole new view of Neil Armstrong and Buzz Aldrin's lunar strolls.

Back on July 20, 1969, the raw video feed from the moon was beamed to the Parkes Observatory radio telescope in southeastern Australia, and then compressed and sent to Mission Control in Houston.

Because of technical issues, NASA's images couldn't be fed directly to the TV networks.

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Dino Tooth Sheds New Light On Ancient Riddle: Major Group Of Dinosaurs Had Unique Way Of Eating

These are teeth from the lower jaw of a hadrosaur, Edmontosaurus, showing its multiple rows of leaf-shaped teeth. The worn, chewing surface of the teeth is towards the top. (Credit: Vince Williams, University of Leicester)

From Science Daily:

ScienceDaily (June 30, 2009) — Microscopic analysis of scratches on dinosaur teeth has helped scientists unravel an ancient riddle of what a major group of dinosaurs ate -- and exactly how they did it!

Now for the first time, a study led by the University of Leicester, has found evidence that the duck-billed dinosaurs -- the Hadrosaurs -- in fact had a unique way of eating, unlike any living creature today.

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What Supersonic Looks Like

A U.S. Air Force F-22 Raptor aircraft participating in Northern Edge 2009 executes a supersonic flyby over the flight deck of the aircraft carrier USS John C. Stennis (CVN 74) while the ship is underway in the Gulf of Alaska on June 22, 2009. The visual effect is created by moisture trapped between crests in a sound wave at or near the moment a jet goes supersonic. Credit: DoD/Petty Officer 1st Class Ronald Dejarnett, U.S. Navy

From Live Science:

The breaking of the sound barrier is not just an audible phenomenon. As a new picture from the U.S. military shows, Mach 1 can be quite visual.

This widely circulated new photo shows a Air Force F-22 Raptor aircraft participating in an exercise in the Gulf of Alaska June 22, 2009 as it executes a supersonic flyby over the flight deck of the aircraft carrier USS John C. Stennis.

The visual phenomenon, which sometimes but not always accompanies the breaking of the sound barrier, has also been seen with nuclear blasts and just after space shuttles launches, too. A vapor cone was photographed as the Apollo 11 moon-landing mission rocketed skyward in 1969.

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Elgin Marble Argument In A New Light

The bronzed original sculptures stand in contrast to the white reproductions of the part of the frieze now displayed in the British Museum. Thanassis Stavrakis/Associated Press

From The New York Times:

ATHENS — Not long before the new Acropolis Museum opened last weekend, the writer Christopher Hitchens hailed in this newspaper what he called the death of an argument.

Britain used to say that Athens had no adequate place to put the Elgin Marbles, the more than half of the Parthenon frieze, metopes and pediments that Lord Elgin spirited off when he was ambassador to the Ottoman Empire two centuries ago. Since 1816 they have been prizes of the British Museum. Meanwhile, Greeks had to make do with the leftovers, housed in a ramshackle museum built in 1874.

So the new museum that Bernard Tschumi, the Swiss-born architect, has devised near the base of the Acropolis is a $200 million, 226,000-square-foot, state-of-the-art rebuttal to Britain’s argument.

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Is Farming The Root Of All Evil

Cereal killer: the introduction of agriculture was followed by malnutrition and disease Photo: GETTY

From The Telegraph:

Academics have claimed that moving away from a hunter-gatherer lifestyle was 'the worst mistake in history'. But are they right?

Last week, Sir Paul McCartney urged us, amid a blaze of publicity, to curb our carnivorous lifestyles and go meat-free on Mondays, in order to reduce the damage that modern agriculture does to the planet. But for all the recent talk about the pros and cons of farming, and how the methods we use are affecting the environment, a more basic point has been missed e_SEnD that growing crops might be damaging not just to the environment but to the development of our own species. Could it be that rather than being a boon to mankind, the invention of agriculture was, in the words of one academic, "the worst mistake in human history"?

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Scots Fought 'In Bright Yellow War Shirts Not Braveheart Kilts'

From The Telegraph:

Medieval Scottish soldiers fought wearing bright yellow war shirts dyed in horse urine rather than the tartan plaid depicted in the film Braveheart, according to new research.

Historian Fergus Cannan states that the Scots armies who fought in battles like Bannockburn, and Flodden Field would have looked very different to the way they have traditionally been depicted.

Instead of kilts, he said they wore saffron-coloured tunics called "leine croich" and used a range of ingredients to get the boldest possible colours.

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Science Must Never Be Politicized Nor "Suppressed"

EPA analyst Alan Carlin raised questions about the impact of global warming on areas like Greenland. Shown here is an iceberg off Ammassalik Island, Greenland. (AP Photo)

Sen. Inhofe Calls for Inquiry Into 'Suppressed' Climate Change Report -- FOX News

Republicans are raising questions about why the EPA apparently dismissed an analyst's report questioning the science behind global warming.

A top Republican senator has ordered an investigation into the Environmental Protection Agency's alleged suppression of a report that questioned the science behind global warming.

The 98-page report, co-authored by EPA analyst Alan Carlin, pushed back on the prospect of regulating gases like carbon dioxide as a way to reduce global warming. Carlin's report argued that the information the EPA was using was out of date, and that even as atmospheric carbon dioxide levels have increased, global temperatures have declined.

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My Comment: News like this only reinforces the perception that climate change is driven more by politics than by science.

First Electronic Quantum Processor Created

The two-qubit processor is the first solid-state quantum processor that resembles a conventional computer chip and is able to run simple algorithms. (Credit: Blake Johnson/Yale University)

From Science Daily:

ScienceDaily (June 29, 2009) — A team led by Yale University researchers has created the first rudimentary solid-state quantum processor, taking another step toward the ultimate dream of building a quantum computer.

They also used the two-qubit superconducting chip to successfully run elementary algorithms, such as a simple search, demonstrating quantum information processing with a solid-state device for the first time. Their findings will appear in Nature's advanced online publication June 28.

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Getting Old Is Better Than Expected

From Live Science:

When do we get old? People age 18 to 29 say "old age" starts at about 60. But those in middle-age figure it starts at 70. And those 65 and older put the threshold at 74.

So it goes with other perceptions about aging in a new survey form the Pew Research Center. The disparities between what younger people expect will happen as they age, and what really happens, are stark.

Good memory, good health, good sex. It's enough to make the grandkids cringe!

Adults age 18 to 64 were asked what they expect will happen when they get old. Those 65 and older were asked what actually has happened to them. The results (18-64 / 65 and older):

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Oldest Known Portrait Of St Paul Revealed By Vatican Archaeologists

The 4th-century portrait was found in the catacombs of St Thecla,
not far from the Basilica of St Paul's Outside the Walls.

From Times Online:

Vatican archaeologists have uncovered what they say is the oldest known portrait of St Paul. The portrait, which was found two weeks ago but has been made public only after restoration, shows St Paul with a high domed forehead, deep-set eyes and a long pointed beard, confirming the image familiar from later depictions.

L'Osservatore Romano, the Vatican newspaper, which devoted two pages to the discovery, said that the oval portrait, dated to the 4th century, had been found in the catacombs of St Thecla, not far from the Basilica of St Paul’s Outside the Walls, where the apostle is buried. The find was “an extraordinary event”, said Monsignor Gianfranco Ravasi, head of the Pontifical Council for Culture.

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Swine Flu 'Shows Drug Resistance'

From The BBC:

Experts have reported the first case of swine flu that is resistant to tamiflu - the main drug being used to fight the pandemic.

Roche Holding AG confirmed a patient with H1N1 influenza in Denmark showed resistance to the antiviral drug.

David Reddy, company executive, said it was not unexpected given that common seasonal flu could do the same.

The news comes as a nine-year-old girl has become the third to die in the UK with swine flu.

It is understood from her doctors at Birmingham Children's Hospital that she had underlying health conditions. It is not yet known whether swine flu contributed to her death.

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Men Agree On What's Hot In The Opposite Sex (But Girls Do Not)

Image: Queen of the seductive pose: Katie Price ticks the boxes for men as she is thin and confident

From The Daily Mail:

Men agree on what is attractive in the opposite sex far more than women do, says a study.

The survey of 4,000 adults found that most men liked women who were thin and posing seductively.

Women, in contrast, were enticed by a far wider range of male characteristics.

The results could explain why women feel pressured to conform to a narrow view of attractiveness, and suffer more eating disorders, the scientists said.

Participants in the study rated photographs of men and women aged 18 to 25 for attractiveness.

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Great Wall of Facebook: The Social Network's Plan to Dominate the Internet — and Keep Google Out

From Wired News:

Larry Page should have been in a good mood. It was the fall of 2007, and Google's cofounder was in the middle of a five-day tour of his company's European operations in Zurich, London, Oxford, and Dublin. The trip had been fun, a chance to get a ground-floor look at Google's ever-expanding empire. But this week had been particularly exciting, for reasons that had nothing to do with Europe; Google was planning a major investment in Facebook, the hottest new company in Silicon Valley.

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High-Tech Telescopes Yield New Galactic Photos: Gallery

From Popular Mechanics:

Some of the most important telescopes ever created are now floating in space. A freshly repaired Hubble Space Telescope is again snapping pictures, NASA's Kepler telescope is orbiting Earth fresh off its first light and Herschel—the largest space telescope ever—has taken its first images since its May 14th launch. While astronomers using ground-based telescopes are finding exoplanets at an impressive rate, thanks to refined techniques and collaborative efforts, space telescopes operating from beyond Earth's atmosphere have a geographic edge: With no interference, they can get a clearer view of the universe. The following images show some of the spectacular sights astronomers have been able to glimpse through the new hardware.

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Innovation: Physics Brings Realism To Virtual Reality

From New Scientist:

Innovation is our regular column that highlights the latest emerging technological ideas and where they may lead.

Computer games have come a long way from the pixelated graphics of the 1980s to the more polished characters of today. But the inexorable creep of Moore's Law has now taken us to the brink of further giant changes.

The latest multi-core processors and some smart software allow techniques used by physicists and engineers to simulate the real world in extreme detail to be used to create virtual worlds governed by real physics, rather than the simplified versions used today.

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Debate: Can The Internet Handle Big Breaking News?

From CNET News:

It happens time and time again: when news breaks, the Internet slows.

It's quite obvious at this point that the Internet has muscled its way into the lives of anyone who needs information. And Michael Jackson's death Thursday had as great an impact on the Internet as anything in the history of the medium that didn't involve the World Trade Center.

The statistics are amazing: Akamai said worldwide Internet traffic was 11 percent higher than normal during the peak hours between 3 p.m. PDT and 4 p.m., when news of Jackson's death was breaking. That traffic forced even Google to its knees for a brief period of time Thursday afternoon.

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Archaeological Treasure Trove Surfaces In S.C.

From The State:

HILTON HEAD — An archaeologist who’s been digging at the Topper Site in Allendale County for 11 years is uncovering new evidence that could rewrite America’s history.

University of South Carolina archaeologist Albert Goodyear found artifacts at this rock quarry site near the Savannah River that indicate humans lived here 37,000 years before the Clovis people. History books say the Clovis were the first Americans and arrived here 13,000 years ago by walking across a land bridge from Asia.

Goodyear’s discovery could prove otherwise.

His findings are controversial, opening scientific minds to the possibility of an even earlier pre-Clovis occupation of America.

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Why A Low-Calorie Diet Extends Lifespans: Critical Enzyme Pair Identified

The enzyme WWP-1, shown in green, is a key player in the signaling cascade that links dietary restriction to longevity in roundworms. Sensory neurons are shown in red. (Credit: Courtesy of Dr. Andrea C. Carrano, Salk Institute for Biological Studies)

From Science Daily:

ScienceDaily (June 28, 2009) — Experiment after experiment confirms that a diet on the brink of starvation expands lifespan in mice and many other species. But the molecular mechanism that links nutrition and survival is still poorly understood. Now, researchers at the Salk Institute for Biological Studies have identified a pivotal role for two enzymes that work together to determine the health benefits of diet restriction.

When lacking one enzyme or the other, roundworms kept on a severely calorie-restricted diet no longer live past their normal lifespan, they report in the June 24, 2009, advance online edition of the journal Nature.

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Potential New Drugs Put at 970 Million

From Live Science:

Millions of new and useful drugs remain undiscovered. All chemists need to do is mix the right stuff.

That's the view of a new study that analyzes the "chemical universe" to identify existing molecules that could be combined into as-yet unknown chemicals. The researchers estimate there are at least 970 million chemicals suitable for study as new drugs.

The researchers have created a new publicly available database of the virtual molecules, and they will detail their results in the July 1 issue of the Journal of the American Chemical Society.

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Electronic Nose Can Pinpoint Where Wine Was Made

The new technology is said to be able to pinpoint where wine was made,
even identifying the barrel in which it fermented.

From The Telegraph:

Scientists have developed a way of identifying wine so accurately they can even say which barrel it was produced in.

It uses an electronic nose to make even the most confident sommelier a little nervous.

The technique exploits the unique and complex mix of thousands of compounds found in each bottle of wine that gives the drink subtly different scents and flavours

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Stone Age Wells Found In Cyprus

From The BBC:

Archaeologists have found a group of water wells in western Cyprus believed to be among the oldest in the world.

The skeleton of a young woman was among items found at the bottom of one shaft.

Radiocarbon dating indicates the wells are 9,000 to 10,500 years old, putting them in the Stone Age, the Cypriot Antiquities Department says.

A team from Edinburgh University has found six such wells, near the coastal town of Paphos. They are said to show the sophistication of early settlers.

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Google Voice Gives You One Number to Ring Them All

From Popsci.com:

The service, which launched publicly this week, includes automatic transcription of voicemail and recording of calls

Google Voice is one of those technical advancements that could change your way of communication. With it, you can sign up for a single phone number that rings every phone you own. Then you can hand out the number to everyone you know.

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PICTURES: Prehistoric European Cave Artists Were Female

From National Geographic:

June 16, 2009--Inside France's 25,000-year-old Pech Merle cave, hand stencils surround the famed "Spotted Horses" mural.

For about as long as humans have created works of art, they've also left behind handprints. People began stenciling, painting, or chipping imprints of their hands onto rock walls at least 30,000 years ago.

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China’s Manufacturing Boom Has Brought Widespread Pollution And Unexpected Changes To The Bodies, Minds, And Souls Of The Chinese People

A River Runs Through It -- Search Magazine

China’s manufacturing boom has brought widespread pollution—and unexpected changes to the bodies, minds, and souls of the Chinese people.

The cancer ward of Shenqiu County Hospital is busy on this weekday morning. Bicycles and motorbikes are scattered around the dusty brick courtyard and a white doctor’s jacket hangs from a tree to dry. A line of people stand outside a small one-story concrete building, patiently waiting their turn for a few minutes with Dr. Wang Yong Zeng, the chief oncologist. Most carry their life’s medical records with them, clutching the thick folders full of X-rays and documents tightly to their chest.

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Black Holes On A Desktop

From The Economist:

Sound may offer a better way than light to test Stephen Hawking’s prediction that black holes emit radiation.

WHEN the Large Hadron Collider, a giant particle accelerator near Geneva, was switched on last September, the press was full of scare stories about the risk of it producing a tiny black hole that would, despite its minuscule size, quickly swallow the Earth. In fact, the first test runs could never have made such an object. And, just over a week later, the LHC broke and has not yet been repaired. But it is true that one of the things its operators would like to create, if and when they get it going again, are miniature versions of those fabled astronomical objects whose intense gravity means no light can escape them.

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One In 25 Deaths Worldwide Attributable To Alcohol

From Science Daily:

ScienceDaily (June 27, 2009) — Research from Canada's own Centre for Addiction and Mental Health (CAMH) featured in this week's edition of the Lancet shows that worldwide, 1 in 25 deaths are directly attributable to alcohol consumption. This rise since 2000 is mainly due to increases in the number of women drinking.

CAMH's Dr Jürgen Rehm and his colleagues found that alcohol-attributable disorders are among the most disabling disease categories within the global burden of disease, especially for men. And in contrast to other traditional risk factors for disease, the burden attributable to alcohol lies more with younger people than with the older population.

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Study Dispels Myth of Post-Workout Fat Burn

Yes, you burn calories while weightlifting, running or doing other exercise. No, the calorie burn does not continue as you pig out later. Image credit: stockxpert

From Live Science:

After an intense hour of sweating on the treadmill or pumping iron, most of us look forward to the extra post-exercise "afterburn" of fat cells that has been promised to us by fitness pundits. This 24-hour period of altered metabolism is supposed to help with our overall weight loss.

Unfortunately, a recent study found this to be a myth for moderate exercisers.

The new research clarifies a misunderstanding that exercisers can ignore their diet after a workout because their metabolism is in this super active state.

"It's not that exercise doesn't burn fat," said Edward Melanson, associate professor of medicine at the University of Colorado, "It's just that we replace the calories. People think they have a license to eat whatever they want, and our research shows that is definitely not the case. You can easily undo what you set out to do.”

The findings were detailed in the April edition of Exercise and Sport Sciences Review.

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Vatican’s Celestial Eye, Seeking Not Angels But Data

From The New York Times:

MOUNT GRAHAM, Ariz. — Fauré’s “Requiem” is playing in the background, followed by the Kronos Quartet. Every so often the music is interrupted by an electromechanical arpeggio — like a jazz riff on a clarinet — as the motors guiding the telescope spin up and down. A night of galaxy gazing is about to begin at the Vatican’s observatory on Mount Graham.

“Got it. O.K., it’s happy,” says Christopher J. Corbally, the Jesuit priest who is vice director of the Vatican Observatory Research Group, as he sits in the control room making adjustments. The idea is not to watch for omens or angels but to do workmanlike astronomy that fights the perception that science and Catholicism necessarily conflict.

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Brains Replay Memories While We Sleep And Store The Highlights, Claim Scientists

From The Telegraph:

We may think we are asleep - but deep in the recesses of our mind a "memory editor" is working overtime, replaying the experiences of the day and storing the highlights on our brain's version of a video recorder, claim scientists.

Researchers have discovered that the mind keeps most memories for just a day but then at night acts like a film editor sifting through the "video clips" before transferring the best bits to long term storage in our own movie archive.

The research has "profound implications" for the importance of sleep and its link with long term memory, they said.

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Sun Leaves Earth Wide Open To cCsmic Rays

The sun protects the earth from cosmic rays and dust from the solar system but squeezing of various stars could leave us unprotected (Image: NASA/HST collection)

From New Scientist:

THE sun provides ideal conditions for life to thrive, right? In fact, it periodically leaves Earth open to assaults from interstellar nasties in a way that most stars do not.

The sun protects us from cosmic rays and dust from beyond the solar system by enveloping us in the heliosphere - a bubble of solar wind that extends past Pluto. These cosmic rays would damage the ozone layer, and interstellar dust could dim sunlight and trigger an ice age. However, when the solar system passes through very dense gas and dust clouds, the heliosphere can shrink until its edge is inside Earth's orbit.

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Light Goes Out On Solar Mission

From The BBC:

After more than 18 years studying the Sun, the plug is finally being pulled on the ailing spacecraft Ulysses.

Final communication with the joint European-US satellite will take place on 30 June.

The long-serving craft, launched in October 1990, has already served four times its expected design life.

The Esa-Nasa mission was the first to survey the environment in space above and below the poles of the Sun.

Data from the craft, published last year, also suggested that the solar wind - the stream of charged particles billowing away from the Sun - is at its weakest for 50 years.

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Ancient Climate Change: When Palm Trees Gave Way To Spruce Trees

New research reveals the demise of an ancient forest. These are dawn redwood stumps on Axel Heiberg Island, Nunavut. (Credit: Copyright David Greenwood / Used with permission)

From Science Daily:

ScienceDaily (June 25, 2009) — For climatologists, part of the challenge in predicting the future is figuring out exactly what happened during previous periods of global climate change.

One long-standing climate puzzle relates to a sequence of events 33.5 million years ago in the Late Eocene and Early Oligocene. Profound changes were underway. Globally, carbon dioxide levels were falling and the hothouse warmth of the dinosaur age and Eocene Period was waning. In Antarctica, ice sheets had formed and covered much of the southern polar continent.

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Nanoparticles Explored for Preventing Cell Damage

Sudipta Seal, materials scientist and engineer at the University of Central Florida, holds a bottle containing billions of ultrasmall, engineered nanoceria. In the background, are jars filled with different types of nanoceria. Credit: Sudipta Seal, University of Central Florida

From Live Science:

This Behind the Scenes article was provided to LiveScience in partnership with the National Science Foundation.

Sudipta Seal is enthralled by nanoparticles, particularly those of a rare earth metal called cerium. The particles are showing potential for a wide range of applications, from medicine to energy.

Seal is a professor of materials science and engineering at the University of Central Florida (UCF), and several years ago he and his colleagues engineered nanoparticles of cerium oxide (CeO2), a material long used in ceramics, catalysts and fuel cells. The novel nanocrystalline form is non-toxic and biocompatible — ideal for medical applications.

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Dreaming Of Nonsense: The Evolutionary Enigma Of Dream Content

From Scientific American:

Friday, June 19, 2:12 a.m.: Loading up the trunk of my car with clothes hangers when approached by two transients… try to engage them in good-natured conversation about the benefits of wooden clothes hangers over metal ones, but they make me uneasy, say they want to go out to get a drink but I’ve got to go. In a city somewhere… looks like a post-apocalyptic Saint Louis.

Saturday, June 20, 4:47 a.m.: Was just now trying to return my dead grandmother’s cane to her. Took elevator to her apartment… meant to go to the 8th floor, but elevator lurched up to the 18th floor, swung around violently then shot back down. Could hear voices in the corridors outside elevator shaft…. a mother yelling at her child. Grandma then became my other grandma, also decesased, yet in a nursing home; doctors say she’s doing fine.

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FYI: Why Does My Voice Sound Different When I Hear it On A Recording?

Tone Deaf: Your voice makes
 vibrations that only you can hear iStock

From Popsci.com:

It sounds different because it is different. "When you speak, the vocal folds in your throat vibrate, which causes your skin, skull and oral cavities to also vibrate, and we perceive this as sound," explains Ben Hornsby, a professor of audiology at Vanderbilt University. The vibrations mix with the sound waves traveling from your mouth to your eardrum, giving your voice a quality — generally a deeper, more dignified sound — that no one else hears.

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How Michael Jackson's Death Shut Down Twitter, Brought Chaos To Google... And 'Killed Off' Jeff Goldblum

TMZ.com was the first to break the story that Michael Jackson had had a cardiac arrest.

From The Daily Mail:

The internet came alive like never before as people around the world logged on to follow the stunning news of Michael Jackson's death.

The story created such a surge in online traffic last night that Google returned an 'error message' for searches of the singer's name as it assumed it was under attack.

And just seconds after the story broke on the American entertainment website TMZ.com, messages or 'Tweets' about the singer on the micro-blogging site Twitter doubled, leading to a temporary shutdown of the site.

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Magnetic 'Superatoms' Promise Tuneable Materials

Designer clusters of atoms that can mimic other elements have for the first time been devised with magnetic properties (Image: Ulises Reveles, VCU)

From The New Scientist:

New "superatoms" – clusters of atoms that share electrons and can mimic the behaviour of other elements – have been devised with magnetic properties for the first time. The breakthrough provides a way to design novel nano-scale building blocks with controllable magnetic properties that could be used to make faster computer processors and denser memory storage.

Superatoms were discovered in the 1980s when Walter Knight and colleagues at the University of California, Berkeley, found that groups of sodium atoms can share electrons amongst themselves.

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The Milk Myth: What a Body Really Needs

Photo: Milk is dandy, but yogurt has more calcium and is easier to digest. Collards and other greens also have about as much or more calcium than milk by the cup. Greens, unlike milk, have the added benefit of vitamin K, also necessary for strong bones. Tofu and sesame are also very high in calcium. Image credit: stockxpert

From Live Science:

Young adults are not drinking enough milk, according to a study published in the July/August issue of the Journal of Nutrition Education and Behavior by researchers from the University of Minnesota, Minneapolis.

Well, at least that's according to the press release about the study, along with a few press reports on the matter. But according to lead author Nicole Larson, the focus on the study was on calcium.

Once again, we see the words "milk" and "calcium" used interchangeably in the popular press. Milk is a calcium source, but by no standard other than that of the National Dairy Council is it the best calcium source.

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Space Shuttle Science Shows How 1908 Tunguska Explosion Was Caused By A Comet

In 1927 Professor Leonid Kulik took the first photographs of the massive destruction of the taiga forest after the Tunguska catastrophe. (Credit: Professor Leonid Kulik)

From Science Daily:

ScienceDaily (June 25, 2009) — The mysterious 1908 Tunguska explosion that leveled 830 square miles of Siberian forest was almost certainly caused by a comet entering the Earth's atmosphere, says new Cornell University research. The conclusion is supported by an unlikely source: the exhaust plume from the NASA space shuttle launched a century later.

The research, accepted for publication (June 24, 2009) by the journal Geophysical Research Letters, published by the American Geophysical Union, connects the two events by what followed each about a day later: brilliant, night-visible clouds, or noctilucent clouds, that are made up of ice particles and only form at very high altitudes and in extremely cold temperatures.

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Evolutionary Origins Of Your Right And Left Brain

Photoillustration by TWIST CREATIVE; MedicalRF.com Corbis (brain); Medioimages Getty Images (calculator); Joerg Steffens Corbis (faces); Westend61 Corbis (woman smiling); Dougal Waters Getty Images (ballerina); Mike Kemp Getty Images (rattlesnake); C Squared Studios Getty Images (palette); Vladimir Godnik Getty Images (paintbrushes); Carrie Boretz Corbis (girls whispering); Robert Llewellyn Corbis (calipers)

From Scientific American:

The division of labor by the two cerebral hemispheres—once thought to be uniquely human—predates us by half a billion years. Speech, right-handedness, facial recognition and the processing of spatial relations can be traced to brain asymmetries in early vertebrates.

The left hemisphere of the human brain controls language, arguably our greatest mental attribute. It also controls the remarkable dexterity of the human right hand. The right hemisphere is dominant in the control of, among other things, our sense of how objects interrelate in space. Forty years ago the broad scientific consensus held that, in addition to language, right-handedness and the specialization of just one side of the brain for processing spatial relations occur in humans alone. Other animals, it was thought, have no hemispheric specializations of any kind.

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Cloud Computing: Just Another Online Fad--or the Biggest Revolution Since the Internet?

Credit: James Gulliver Hancock

From Technology Review:

According to its advocates, cloud computing is poised to succeed where so many other attempts to deliver on-demand computing to anyone with a network connection have failed. Some skepticism is warranted. The history of the computer industry is littered with the remains of previous aspirants to this holy grail, from the time-sharing utilities envisioned in the 1960s and 1970s to the network computers of the 1990s (simple computers acting as graphical clients for software running on central servers) to the commercial grid systems of more recent years (aimed at turning clusters of servers into high-­performance computers). But cloud computing draws strength from forces that could propel it beyond the ranks of the also-rans.

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Stuck on Mars, Spirit Rover Does Science

From Yahoo News/Space:

The Mars rover Spirit is keeping scientists' spirits up by doing some science while it is stuck in soft soil on the red planet.

The rover has been immobile, trapped hub-deep since May 6. Engineers have replicated the landscape in lab back home and, using an identical rover model, tried to figure out what to do, so far to no avail.

A rock seen beneath Spirit in images from the camera on the end of the rover's arm may be touching Spirit's belly, NASA said in a statement today. It appears to be a loose rock not bearing the rover's weight.

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Buzz Aldrin To NASA: U.S. Space Policy Is On The Wrong Track

Platon photographed Buzz Aldrin for PM in Los Angeles, May 2009. “It’s mankind’s destiny to walk on another planet,” Aldrin says. “We can achieve it, but we’ve got to have the right plan.” (Photograph by Platon)

From Popular Mechanics:

Apollo 11 astronaut Buzz Aldrin has a problem with NASA’s current manned space plan: Namely, the five-year gap between the shuttle’s scheduled retirement next year and the debut of the Ares I rocket and the Orion spacecraft, which will take us no further than the moon—a place we’ve already been. Aldrin thinks NASA can do better. His plan is to scrap Ares I, stretch out the remaining six shuttle flights and fast-track the Orion to fly on a Delta IV or Atlas V. Then, set our sites on colonizing Mars. Here, Buzz challenges NASA to take on his bolder mission.

I had a splendid career at NASA as an astronaut in the Gemini and Apollo programs. The capstone, of course, was my moonwalk on the Sea of Tranquility 40 years ago. I have only two regrets from my NASA days, and both were my own fault: I failed to speak out when I saw bad decisions being made. The first came in 1966, when NASA, in a fit of excessive caution, canceled the Astronaut Maneuvering Unit (AMU), the Buck Rogers–style jet backpack I was scheduled to try out on Gemini 12. Despite difficulties with the AMU on Gemini 9, I was very confident I could make it work. But like a good astronaut, I kept my mouth shut, and I’ve regretted it ever since. As it turned out, it took 18 years for NASA to develop another jet pack, the Manned Maneuvering Unit, used on three space shuttle missions in 1984.

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