GEOLOGY
'(<a href="http://www.j-archive.com/media/2008-10-15_DJ_04.jpg" target="_blank">Kelly of the Clue Crew shows off a space rock sitting next to a picture of a city-sized crater at the University of Wisconsin-Madison Geology Museum.</a>)  The first crater on Earth identified as being made by this was made by a 60,000-ton one; <a href="http://www.j-archive.com/media/2008-10-15_DJ_04a.jpg" target="_blank">here</a>'s a 300-pound chip of it'
a meteor