Friday, October 16, 2009
Mystery Space "Ribbon" Found at Solar System's Edge
From National Geographic:
In a discovery that took astronomers by surprise, the first full-sky map of the solar system's edge—more than 9 billion miles (15 billion kilometers) away—has revealed a bright "ribbon" of atoms called ENAs.
The solar system is surrounded by a protective "bubble" called the heliosphere.
Read more ....
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