The Different Types of Impact Craters and How to Spot Them.
A crater is simple, right? Well, not really, they are not just holes in the ground (well they are really but they do differ depending on the size of the crater). Once we have become experts on the different types ...
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Best of the Web- The Earth in 1000 Years
Posted on September 2nd, 2009 No commentsWhere will all the rubbish go? Space stations? Will aliens notice us if they come to visit and we are extinct? Sending a message to ET. A discussion on the problems and the benefits of living in the universe 1000 years in the future.
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