How impact craters are formed
This sounds a bit like a no-brainer really; the asteroid or comet crosses the path of Earth and hits the Earth's surface causing an impact crater. That's it isn't it? No, nothing in life is quite as simple as that ...
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Best of the Week Podcast-Giant Ribbon at the Edge of the Solar System: Mystery Solved?
Posted on January 15th, 2010 No commentsLast year, when NASA’s IBEX (Interstellar Boundary Explorer) spacecraft discovered a giant ribbon at the edge of the solar system, researchers were mystified. They called it a “shocking result” and puzzled over its origin. Now the mystery may have been solved.

