NASA scientists analysing a giant asteroid that could hit earth sometime between 2175 and 2199 have uncovered some fascinating facts about its surface.
In 2020 NASA's spacecraft OSIRIS-REx collected a sample from Bennu, a 500-metre wide asteroid 200 million miles away from earth.
Researchers recently discovered that the ship would have sunk into Bennu had it not fired its thrusters to back away immediately after it grabbed dust and rock from the asteroid’s surface.
