This is the fourth comet Gröller has discovered, but given its extraordinary distance, it was the most exciting find, he says ...

Beautifully captured against a starry sky, Comet C/2024 G3 (ATLAS) — dubbed by some as the "Great Comet of 2025" — shines ...

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 ...

When it is far from the sun, the comet is just the bare nucleus. As it gets closer to the sun, the ice within the nucleus sublimates, carrying dust to form a coma around the nucleus and trailing a ...