A study has cast doubt on the idea that Jupiter's moon Europa, where NASA has sent a spacecraft, could have conditions to ...

The subatomic particles are incredibly numerous. About 1,000 neutrinos from stars other than the sun pass through a thumbnail every second.

They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our ...

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

From our vantage point inside it, the Milky Way can feel infinite, a hazy river of light that wraps around the sky. Yet when ...

The New Year begins with the nearly full Moon at perigee in the early afternoon. Two days later –– at full Moon –– Earth is at perihelion, its closest point to the Sun.

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

Well, you’ve done it again, Universe. You’ve gone and given us another batch of top-notch discoveries. We guess we should thank the fine folks with those massive telescopes, too. Their lifelong quest ...

The Milky Way is a spiral galaxy containing 100-400 billion stars. Planet Earth sits along one of the galaxy’s spiral arms. Though the Milky Way is generally always visible from Earth, certain times ...

NASCAR legend Greg Biffle’s private plane was in the air for just seven minutes and was “incredibly close” to making a safe emergency landing before it suddenly burst into flames — killing all seven ...

Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight.