Astronomers are watching a new comet pass through our solar system with great interest. Based on its glow, the 33-billion-ton ...

A mysterious 3I/ATLAS interstellar object has once again baffled scientists with its unusual trajectory in the solar system.

The most elusive planetary aurora in the Solar System has finally been revealed in all its gently glowing glory. Far from the Sun, and Earth, the sky-blue planet Neptune has been captured shimmering ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

3I/ATLAS is the third confirmed interstellar object to whoosh through our solar system, after 1I/ʻOumuamua (discovered in ...

Images of interstellar comet 3I/ATLAS snapped during the September 7 total lunar eclipse seem to suggest that the latest ...

A rare, green-glowing comet will make its closest approach to Earth next week — and it won’t return for more than a thousand ...

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

The comets, named C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are visible from the Northern Hemisphere as their orbits take them ...

Not all solar power is created equal. The Ivanpah facility in the middle of the desert has generated power using mirrors for ...