9 ms·
What if a diamond 100ft in diameter hits Earth in near-light speed? http://what-if.xkcd.com/20/ http://what-if.xkcd.com/20/
by altrego99 13y ago
What if a diamond 100ft in diameter hits Earth in near-light speed?
http://what-if.xkcd.com/20/ http://what-if.xkcd.com/20/