If an antimatter meteor came into our solar system, we’d definitely know about it, says one reader, especially if it hit the ...

Could you survive a day on every planet in our solar system? Experience the extreme conditions across the planets in a single ...

In the vast reaches of our solar system, new discoveries are constantly reshaping our understanding of space. One such ...

A scientist says self replicating alien probes may already be hidden in the Solar System, possibly on the Moon, leaving ...

Comet C/2025 K1 (ATLAS) has fragmented after its close solar approach, revealing insights into the fragility of long-period ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

NASA's stunning radar images reveal asteroid 2025 OW, a tiny object spinning incredibly fast, challenging current scientific ...

Pennsylvania lawmakers have been at an impasse on clean energy legislation for years. The lone exception—a $25 million bill ...

A new survey of 500,000 stars finds only 0.28% host close-in giants, showing how aging Sun-like stars drag their planets to destruction.

The rare comet 3I/Atlas has been spotted again after several weeks, this time missing its glowing tail — here’s what ...

How cyanobacteria use a flexible protein to protect themselves from sunlight—and what it could mean for crops and solar tech.