Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

Asteroid 433 Eros is swinging back into Earth’s neighborhood this weekend, bright enough for backyard telescopes and even ...

For decades, humanity has sought answers to one of the most profound questions in science: are we alone in the universe? The ...

Scientists have detected tiny lightning bolts on Mars for the first time — they were found discharging around NASA's ...