Astronomers studying Comet 41P/Tuttle-Giacobini-Kresak have reported evidence that the small icy body may have done something never before observed: stopped spinning, and reversed its rotation ...

Astronomers tracking the movements of Comet 41P/Tuttle-Giacobini-Kresak have found that it appears to have slowed its rotation, before the direction of its rotation reversed. Comet ...