Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

A new Southwest Research Institute (SwRI) study based on data from NASA's New Horizons spacecraft has uncovered insights into ...

Voyager 1 has made an astonishing discovery at the edge of our solar system that challenges everything we thought we knew!

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar system and is unlike anything ever before seen in our cosmic backyard, ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming into view, revealing hints of a surprising past – and the origin of Saturn's ...

Learn more about "StormWall," what it is, and how it will keep Earth safe from potentially dangerous solar storms.

Free electricity? Australia’s got it, thanks to solar. Could the US be next? “It’s just a complete no-brainer,” says Sharon ...