Earth is the only life-supporting planet in our Solar System. Until now. Today, we're bringing Kepler 22-b into our planetary ...

A new explanation for the solar system's radioactive elements suggests Earth-like planets might be found orbiting up to 50 ...

There are very few “good” hard science-fiction anime out there, but 'Planetes' is definitely one of them, albeit one wrapped ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

With major eclipses, brilliant supermoons, and lineups of five or more planets, 2026 offers something awe-inspiring in every season. Here’s what to watch for.

The bright binary star system V Sagittae will flare up multiple times before finally going supernova within the next 100 ...

A brilliant point of light is rising in the eastern sky soon after dark this month, drawing comparisons to the "Star of ...

Earth has the perfect combination of a livable atmosphere and a protective magnetic field that prevents the Sun's harmful radiation and radioactive solar winds from damaging us, allowing us to live on ...

Body-crushing pressure. Toxic atmospheres. Unbearable temperatures. That's what would be in store if you visited other planets in our Solar System.

The twin telescopes of the Gemini Observatory mark 25 years of discovery as students name distant nebula Ua ʻŌhiʻa Lan. The ...