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

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 ...

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in ...

The triple star system is sending comets, asteroids and meteors our way, and the number of interstellar objects entering the solar system will rise.

It is also theoretical. Astronomers infer the Oort Cloud is there because it's the only logical explanation for the arrival ...

The Oort Cloud comet — also known as the Tsuchinshan-ATLAS — will be lighting up the sky starting Oct. 9 Stargazers will be able to witness a "once-in-a-lifetime" comet in the night sky this ...

Far beyond Pluto, trillions of cold comets circle the sun in a lazy swarm called the Oort Cloud. A new simulation indicates what this comet-cloud looks like: a loose spiral that resembles a ...

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The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.