A comet called ATLAS dazzled the southern skies for the last few weeks. Now it's heading out of view for half a million years ...

G3 (ATLAS), the 'Great Comet of 2025,' lit up the night sky in Chile, offering a rare and breathtaking sight for stargazers, with its bright tails and glowing coma.

A White House science advisor recently war-gamed with space agency heads worldwide to devise a planet-saving defense to an asteroid set to strike Earth - in a simulation.

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

Sensational "city killer" headlines aside, NASA and the European Space Agency reported the asteroid "has a very small chance" of Earth impact.

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 ...

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NASA is tracking a bus-sized asteroid zipping past the Earth at nearly 16,000 miles per hour today. The asteroid, known as "2025 DM7," is estimated to be about 42 feet across and soared past our ...