Eleven images of the asteroid Kleopatra, viewed at different angles as it rotates. (ESO/Vernazza, Marchis et al./MISTRAL algorithm ONERA/CNRS) (CN) — A team of astronomers have captured the most ...

If Asteroid 2024 YR4 were to strike Earth, the energy released could be equivalent to 8 megatons of TNT, capable of devastating an area the size of Washington, D.C.

Of all the floating piles of rubble in space, asteroid Bennu is special. The diamond-shaped asteroid was first discovered in 1999. Now it is the primary target of NASA's first asteroid sample-return ...

This three-dimensional view of asteroid Bennu was created by the OSIRIS-REx Laser Altimeter (OLA), contributed by the Canadian Space Agency, on NASA’s OSIRIS-REx spacecraft. From Feb. 12 through 17, ...

It's no Roswell, but dedicated UFOlogists have spent decades debating the true nature of the Tunguska event, a June 30, 1908, explosion that cleared an 800-sq.-mi. swath of Siberian forest. After all, ...