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- SETI and the Universe
Posted on February 25th, 2010 No commentsFifty years ago, a young astronomer named Frank Drake pointed a radio telescope at nearby stars in the hope of picking up a signal from an alien civilization. Thus began one of the boldest scientific projects in history: the Search for Extraterrestrial Intelligence (SETI).
A great lecture with slides from the Royal Society.
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