Last Friday, NASA announced a new report published in Science that used videos and eyewitness accounts to provide new insights into the Chelyabinsk incident and the nature of the object that caused it.
The asteroid that exploded near Chelyabinsk, Russia on Feb. 15, 2013 has provided scientists new insights into the risks of smaller asteroid impacts. This 3D simulation of the Chelyabinsk meteor explosion by Mark Boslough was rendered by Brad Carvey using the CTH code on Sandia National Laboratories' Red Sky supercomputer. Andrea Carvey composited the wireframe tail. Photo by Olga Kruglova.