The giant-impact hypothesis posits that billions of years ago a Mars-sized body named Theia collided with the early Earth.

Daichi Fujii from the Hiratsuka City Museum in Japan captured a meteor impact the moon with multiple telescopes. Credit: Daichi Fujii (Hiratsuka City Museum) | edited by Space.com's Steve Spaleta Musi ...

In Huntsville, a city fueled by defense and aerospace, there is anxiety but also cautious optimism that federal investment ...

Scientists have long thought that the South Pole-Aitken basin was formed by a shallow-angle impact, but new research suggests ...

Asteroid headed towards Earth could smash into the Moon, scientists say - Nasa expects chances of Earth collision to be ...