Earth, asteroid

Astronomers will use the Webb telescope to closely monitor the size and trajectory of an asteroid that has a slim chance of striking Earth in 2032.
NASA's OSIRIS-REx mission reached asteroid 101955 Bennu. Two years later, the spacecraft snagged a sample of its surface, ...
The risk of an asteroid hitting Earth has doubled in a week but there are no plans yet to build a spacecraft to deflect the ...