The stunning comet C/2024 G3 lights up the sunset sky over Chile's Very Large Telescope in this spectacular photo.

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.

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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