A close-up view of a portion of a "relatively fresh" crater, looking southeast, as photographed during the third Apollo 15 lunar surface ...
Morning Overview on MSN
The mysterious Tesla-style weapon some think triggered the Tunguska blast
In the summer of 1908, a blast over remote Siberia flattened trees across an area larger than some countries and lit the sky as far away as Europe. With no crater, no confirmed meteorite fragments and ...
Space.com on MSN
A colossal asteroid may have warped the moon from the inside out
The findings are a big clue as to why the far and near hemispheres of the moon look so different.
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