Joel Olson
2012-11-11 14:15:12 UTC
http://www.rdmag.com/news/2012/11/comet-collisions-every-six-seconds-explain-17-year-old-stellar-mystery?et_cid=2940085&et_rid=264725659&linkid=http%3a%2f%2fwww.rdmag.com%2fnews%2f2012%2f11%2fcomet-collisions-every-six-seconds-explain-17-year-old-stellar-mystery