Perihelion is the point on an orbital course that brings a body closest to the sun. C/2025 K1 (ATLAS) is an Oort cloud comet ...

Skywatchers are anticipating prime viewing conditions for an annual showing of shooting stars and two comet flybys ...

The interstellar comet known as 3I/ATLAS has reappeared from behind the sun, giving astronomers a new chance to study the rare visitor as it travels through the inner solar system.

I/Atlas continues to head toward Earth, reaching a close distance to our sun. Here's what to know about the online discord ...

This is only the third interstellar comet scientists have observed. Its extreme brightening, unusual composition, and intense ...

Comet Lemmon can be found west of the Big Dipper, beyond bright star Arcturus, while Comet SWAN is moving towards Saturn, and ...

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete ...

A pair of once-in-a-lifetime comets are rocketing through our skies right now, and it's a rare treat because they won't be ...

Here's where Comet 3I/ATLAS, Lemmon and SWAN are in the Halloween sky.

A rare opportunity to see not one but two comets awaits skygazers this October. We show where and how to view them.

The nights drew in and the mornings turned colder in Gloucestershire during the first week after the clocks went back. People ...