NASA's Lucy spacecraft, on its way to Jupiter's Trojan asteroids, has its next target in its sights: the main belt asteroid 52246 Donaldjohanson. Currently 45 million miles (70 million kilometers ...

Starships on Mars or, even better, stationed throughout the asteroid belt, would be ideal for protecting Earth from asteroids and especially comets,' he tweeted. Currently, NASA would not be ...

Illustration: NASA’s Goddard Space Flight Center/Conceptual Image Lab/Adriana Gutierrez The Lucy spacecraft just got its first good look at the main belt asteroid Donaldjohanson as the NASA ...