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

Every once in a while, the gravity of a passing star will change the orbit of these dirt balls, sending them into the inner solar system. Some comets have been around for thousands of years ...

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 ...

The escaping material can cause significant changes in a comet's orbit, acting like natural rocket engines, with the exact changes depending on the direction, speed, and amount of the escaping gas ...

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

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

Discovered on April 5, 2024 by the Asteroid Terrestrial-impact Last Alert System (ATLAS), it is a nonperiodic comet that's traveling on an orbit that won't bring it back to the sun's neighborhood ...

For context, the Oort cloud is a spherical shell of comets and icy bodies that exist out beyond the orbit of Neptune, which is located around 2.8 billion miles (4.5 billion kilometers) from the sun.

The comet was last seen in Earth's skies in 1986, Halley’s orbit period is on average, 76 Earth years. This corresponds to an orbital circumference around the Sun of about 7.6 billion miles (12. ...

Located far beyond the orbit of Pluto, some scientists think the Kuiper Belt is the source of water for the inner solar system where Earth is located, delivered through comets billions of years ago.