Bennu, Earth and Asteroid

NASA's OSIRIS-REx mission reached asteroid 101955 Bennu. Two years later, the spacecraft snagged a sample of its surface, ...
However, Bennu, a 500-metre wide lump of rock, has been located by the boffins and their telescopes and they’ve given it a 1 ...
What would happen if a 500-meter asteroid hit Earth? Scientists at the IBS Center for Climate Physics modeled the aftermath, ...