What seemed like new planets around Fomalhaut were actually expanding dust clouds from violent planetary collisions seen by Hubble.

A new composite image reveals the “Champagne Cluster” as two massive galaxy clusters caught in a rare, violent collision.

Russian scientists will soon meet in secret to work on a plan for saving Earth from a possible catastrophic collision with a giant asteroid in 26 years, the head of Russia's space agency said ...

Space junk has filled up so much of Earth's orbit that it's endangering satellites and astronauts. The company Kayhan Space issues roughly 1,000 space-collision warnings per day. Earth-orbit experts ...

Earth orbit is becoming increasingly crowded. With more than 11,000 active satellites and many thousands more expected in the coming years, as well as more than 1.2 million pieces of space debris ...

Large asteroids are considered a potential threat to the Earth. That's why scientists closely monitor them and record every ...

NASA's TIMED satellite narrowly avoided colliding with a dead Russian spacecraft this week. In the worst-case scenario, the collision could have ejected up to 7,500 bits of debris into orbit.

An asteroid's chances of hitting the Earth in 2032 have risen again to over 3%. Experts say not to worry for now, as chances the asteroid will miss the Earth stand at nearly 97%. Astronomers now say a ...

Rocks from Canada, Greenland, and Hawai'i have less of the already rare isotope potassium-40 than those from the rest of the Earth. The scientists who discovered this fact consider it evidence that ...

(THE CONVERSATION/AP) - With the Taurid meteor shower now hitting the night skies worldwide, look for what could be a celestial treat – you might see shooting stars, and maybe even fireballs, the ...