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 – TDRS Data Relay Satellite System
Posted on October 29th, 2009 No commentsTracking and data relay satellite system of the TDRS sounds anything but interesting , but it’s one of those normal and secret communication systems. It’s only a 10 minute podcast so give it a go.
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