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 Solar System is far more diverse in size than it appears from Earth. From tiny rocky worlds to massive gas giants, each ...

🛍️ Amazon Prime Day: The best deals chosen by our editors 🛍️ By Laura Baisas Published Jul 16, 2025 11:00 AM EDT Add Popular Science (opens in a new tab) More information Adding us as a Preferred ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

The findings surprised researchers, who used the comet's composition to better understand the environment in which it formed.

Science fiction promises faster-than-light travel and easy journeys to other stars, but physics may have built a prison ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

A rare meteorite has revealed evidence of a massive lost world that once orbited the young Sun before being destroyed in a catastrophic collision. The discovery suggests some early planets formed from ...

Roughly four and a half billion years ago the planet Theia slammed into Earth, destroying itself, melting large portions of our planet’s mantle and ejecting a huge debris disk that later pulled ...

The standard story of the origin of our solar system has gone like this: 4.6 billion years ago, a giant cloud of dust hung frozen in space. Then the explosion of a nearby star caused part of that dust ...

Public Night at the Oil Region Astronomy Learning Center, home of the Bedow Memorial Observatory, will be held Saturday at 8 p.m. Tim Spuck, director of Education and Public Engagement at ...