Catalina Sky Survey,
...and a link to the original study: http://www.nature.com/nature/journal/v503/n7475/full/nature12671.html
...and a link to the original study: http://www.nature.com/nature/journal/v503/n7475/full/nature12671.html
http://www.nature.com/nature/journal/vaop/ncurrent/pdf/nature12671.pdf Interesting read if you are into the whole potential of…
The trajectory, structure and origin of the Chelyabinsk asteroidal impactor