24P/Schaumasse will make its closest pass of the sun on Jan. 8, according to In-the-sky, when it will pass 109.7 million ...

The Eta Aquarid meteor shower will light up the sky Monday, May 5 with a chance to see pieces of Halley's comet streak through the night sky. Here's what to know and when to watch. The annual Eta ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Here’s a final call for anyone who wants to see two green ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's everything to know about it.

Telescopes around the world are now tracking a new visitor to our celestial neighborhood. Streaking through at a speed and trajectory that not even the Sun's immense gravity can capture, we will only ...

One simulation compared two comets—one with a 250-year orbit and one with a 4,000-year orbit. In both cases, the comets spent most of their time far beyond the big planets. They only became ...

The Eta Aquarid meteor shower will light up the sky Monday, May 5 with a chance to see pieces of Halley's comet streak through the night sky. Here's what to know and when to watch. The annual Eta ...

At roughly 250,000 kilometers per hour, comet 3I/ATLAS did not merely pass through the inner solar system it tore through it, ...

Comet 3I/ATLAS has arrived in the inner solar system behaving as if the usual rules of comet physics were optional. Instead ...

No two comets are exactly alike. While SWAN’s orbit is very well aligned with the plane of the planets as they orbit the sun, Lemmon’s orbit is highly inclined, tipped by more than 140 degrees, ...