Our expert travel guide to the 2026 total solar eclipse in Greenland, Iceland and Spain is packed with insider tips, travel advice and skywatching secrets from seasoned eclipse chasers.

"The consequences, should the hypothesis turn out to be correct, could potentially be dire for humanity," said Avi Loeb.

Astronomers have discovered an incredibly rare non-planetary body lurking on the outer reaches of the Solar System, which could shake up scientists' understanding of our little corner of the universe ...

Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

The comet was discovered on July 1 by the ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope. Knowing ...

The star is surrounded by a protoplanetary disk, and this disk is the first evidence of debris condensing into what will ...

In the dark, icy outskirts of our solar system—far beyond Neptune's orbit—astronomers have discovered a cosmic oddball that ...