Is The U.S. Losing It's 'Space Edge'?

Bill Nye: U.S. Risks Losing Its Space Edge -- Richard Galant, CNN

(CNN) -- Years before Bill Nye became the Science Guy, he was a mechanical engineering student at Cornell University, where he took a course with astronomer Carl Sagan.

Sagan, who was instrumental in the planning of NASA missions to other planets and became widely known for his research, writing and public television series, was one of the founders of the Planetary Society. And his student dutifully signed up to become a member.

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My Comment: It's hard to believe it .... but yes ... the US is losing it edge in space.

Voyager 1 Moves Ever Closer To The Solar System's Edge

Voyager 1 One of the two identical Voyager probes, as photographed by NASA. NASA

Voyager 1, Moving Ever Closer To Solar System's Edge, Hit By Rapidly Increasing Amounts of Cosmic Rays -- Popular Science

It's perched on the very edge of the solar system, and new data is the strangest yet.

For at least a year now, NASA has been waiting with bated breath for Voyager 1 to pass through the boundary of our solar system and become our first emissary to the stars. It’s been cruising the edge for some time, but when it finally leaves forever, it won’t be a satisfyingly clear punch-through — so it’s hard to say exactly when this will happen. Or happened. Now the spacecraft is in another strange new zone, where the influx of cosmic particles has been ramping up by the week.

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My Comment: Yup .... one can say that we are now exploring the stars.

Nasa Probe Sees The 'Edge' Of Our Solar System For First Time

Detecting clues: The discovery, by Nasa's Interstella Boundary Explorer (IBEX) ship, gives the most complete glimpse yet of what lies beyond our solar system

The Outer Limits: Nasa Probe Sees The 'Edge' Of Our Solar System For First Time - And It's Completely Different From What We Thought -- Daily Mail

* Solar system 'travelling more slowly than thought'
* 'Bow shock' - like a sonic boom in space - does not exist
* 25 years of research turned on its head
* Detected by the orbitiing IBEX probe, with information from Nasa's two Voyager craft

Nasa's probes have seen the 'edge' of our solar system for the first time - and it's completely different from what scientists thought.

Our solar system is flying through space more slowly than we thought - and Nasa's IBEX - Interstellar Boundary Explorer - has found it doesn't have a 'bow shock', an area of gas or plasma that shields our solar system as it hurtles though space

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My Comment: This is what I love above space science .... learning things that we never thought of before.

Cassini Camera Stops Shooting Snaps

From Wired Science:

NASA’s Cassini orbiter, the powerhouse producer of mind-blowing Saturn photos, unexpectedly put itself into “safe mode” at 7 p.m. EDT, Tuesday, Nov. 2. Engineers still don’t know why.

The craft automatically triggers its safe-mode settings whenever something happens that requires attention from mission controllers on the ground. Since going into safe mode, Cassini has stopped collecting science data and sent back only data on engineering and spacecraft health.

That’s normal, said Cassini program manager Bob Mitchell in a press release.

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Mars Orbiter Back Up And Running Again Following Computer Glitch

This artist's concept of the Mars Reconnaissance Orbiter from 2006 features the spacecraft's main bus facing down, toward the red planet. The large silver circular feature above the spacecraft bus is the high-gain antenna, the spacecraft's main means of communicating with both Earth and other spacecraft. NASA/JPL

From Christian Science Monitor:

Mars orbiter spontaneously rebooted itself and stopped gathering information last week. However, last Saturday, the Mars orbiter began collecting data again and appears to be back on track, high above the Red Planet.

A powerful NASA spacecraft around Mars has bounced back yet again Saturday, resuming its study of the Red Planet three days after a recurring computer glitch temporarily waylaid its mission.

The Mars Reconnaissance Orbiter started gathering science data again on Sept. 18, NASA officials announced. On Sept. 15, the orbiter put itself into precautionary "safe mode" — a sort of spacecraft hibernation — after spontaneously rebooting for unknown reasons.

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New Space Engines May Trade Fuel For Photons

From Popular Mechanics:

Interplanetary travel may soon be powered by propulsion systems lifted from sci-fi novels, as researchers reach for faster, lighter space engines.

Chemical combustion engines are an unbeatable technology for escaping Earth’s atmosphere and gravitational pull. In space, however, these rockets are inefficient—they burn through huge quantities of fuel while generating more thrust than necessary. That’s why researchers are increasingly turning to nonchemical propulsion systems, which could drastically lighten spacecraft while achieving higher speeds. Some of the ideas being researched, like antimatter engines, depend on established physics but go far beyond current technology. “Someone’s got to think beyond the obvious,” says Marc Millis, a propulsion physicist at NASA’s Glenn Research Center. “You have enough other people in the world doing the next obvious thing. By reaching beyond that, you can discover the breakthroughs other folks aren’t even looking for, and change everything.”

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Near The Edge Of The Solar System, Voyager 2 Finds Magnetic Fluff

From Discover Magazine:

After three-plus decades of exploring the gas giants, passing the orbit of Pluto, and reaching points beyond, Voyager 2 has found something interesting near the edge of the solar system: surprisingly magnetic fluff. Researchers document their findings in this week’s Nature.

Of course, this fluff isn’t made from the dust bunnies you find under your bed, the ‘Local Fluff’ (a nickname for the Local Interstellar Cloud) is a vast, wispy cloud of hot hydrogen and helium stretching 30 light-years across [Discovery News]. Astronomers already knew this fluff was out there near the boundary area between our solar system and interstellar space. What surprised them is that the fluff is much more magnetized than they’d expected.

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Dream Of Solar Sailing In Space Lives On In New Project

An artists rendering of a solar sail is shown in this undated publicity image from The Planetary Society released to Reuters. Backers of a failed mission to launch the world's first solar-sail spacecraft unveiled plans on Monday to try again five years later with a smaller, swifter satellite to test the limits of sunlight propulsion. (Handout/REUTERS)

From Christian Science Monitor:

The US-based Planetary Society this week announced its second attempt to launch a small spacecraft with sails propelled by sunlight.

Its designers call it LightSail-1. And if it works as advertised, the solar sail project would represent a baby step toward humanity’s first starship.

This week, the California-based Planetary Society announced a new project to launch a small spacecraft propelled by a solar sail. In principle, the idea is simple: Use the sail to intercept sunlight, which presses on the sail much like wind on canvas. (The same pressure keeps the sun from collapsing under its own gravity.)

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Aluminum Fuel Could Power Future Space Trips

Powered by Powdered Aluminum: This test rocket soared 1300 feet into the air using seven inches of a new, environmentally friendly fuel made of nanoaluminum and ice. Purdue University/Steven Son

From Discovery News:

Aluminum and water is usually a boring combination, but light a mixture of nanoaluminum and ice and the results are explosive.

Scientists from Purdue University have created a new, environmentally friendly solid rocket fuel that recently sent a rocket screaming 1300 feet into the air using seven inches of nanoaluminum and ice. The new fuel could power missions to the moon or Mars while dramatically reducing the amount of on-board fuel.

"Theoretically you can get very high temperatures using aluminum and water, but the kinetics would be so slow and it would be so hard to ignite that it's very hard to actually make the rocket work," said Steven Son, a professor at Purdue University in Indiana who helped develop the new fuel.

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Clinical Immortality And Space Settlement

Galactic space lines may not be as far fetched as they sound. (credit: Virgin Galactic)

From The Space Review:

There was a recent article in the New York Times, “Three Score and Ten”, which was inspired by a Lancet paper that predicted the median life expectancy for babies born in America in 2007 is greater than or equal to 104. In 3000 BC, it was 24 and stayed there almost until the industrial revolution. In 1850, it was 38. In 1909, it was 50. In 1959, it was 67. Current demographics indicate it’s only 78. The extra 26 years that Lancet predicts comes from anticipated future improvements in reducing death rates (morbidity).

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Plutonium Shortage Threatens Future Deep Space Missions

Fuel Shortage Dwindling supplies of plutonium-238, the fuel NASA uses to launch probes into deep space and to power Mars rovers, threaten to set back some missions for a decade. Los Alamos National Laboratory

From Popular Science:

Imagine you’re driving across the Mojave Desert, and somewhere in the middle of absolutely nowhere you realize that the next gas station is further away than your car can travel on its current supply of gasoline. What next? That’s the problem NASA mission planners are facing as the agency's supply of plutonium-238, the fuel used to power deep space probes like Cassini and surface scouts like the upcoming Mars Science Laboratory, are dwindling. Unfortunately, that leaves NASA in a pretty tight spot: we’ve depleted our reserves of plutonium-238, and there isn’t anywhere to refuel ahead on the horizon either.

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Too Much Radiation For Astronauts To Make It To Mars

A trip to Phobos comes with extras (Image: NASA/JPL)

From New Scientist:

FORGET the risk of exploding rockets or getting sideswiped by a wayward bit of space junk. Radiation may be the biggest hurdle to human exploration beyond low-Earth orbit and could put a damper on a recently proposed mission to Mars orbit.

A panel tasked by the White House with reviewing NASA's human space flight activities (New Scientist, 22 August, p 8) suggests sending astronauts to one of Mars's moons, Phobos or Deimos, among other possibilities raised in its report released last week (http://tinyurl.com/mbajav).

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5 Future Robotic Expeditions And What They Could Reveal [Slide Show]

ESA/AOES Medialab

From Scientific American:

Some are already on their way and some are still in the works, but here is what we may see from unmanned exploration of space in the coming years.

Fifty years ago this month, the Soviet Union scored a coup in the space race with a probe called Luna 2. The spacecraft, which resembled a squat, souped-up version of its cousin Sputnik, was launched on September 12, 1959, and two days later reached the lunar surface. By impacting the moon, Luna 2 became the first man-made object to land on a celestial body other than Earth.

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