Galileo Galileis quote about the authority of a thousand people versus the humble reasoning of one individual celebrates ...

We've found more than 5,500 exoplanets so far. Dozens of them are in the habitable zones of their parent stars, where, at ...

What surface compositions exist on Jupiter’s fourth Galilean Moon, Callisto, and what can it teach scientists about the ...

New study outlines the first quantitative framework for searching lunar regolith for microscopic technosignatures.

Several exomoon candidates have been proposed, but none has become an unambiguous, confirmed example. This object differs ...

This week we bid adieu to the brightest planet in the heavens: Venus. For the past few months, it has glistened like a jewel in our western sky at dusk, ...

But the universe also hosts worlds that break away from this familiar image. Some planets drift alone through space without a ...

Week of Sept. 13-19, 2026 This week we bid adieu to the brightest planet in the heavens: Venus. For the past few months, it ...

Celebrating its 20th anniversary, this free, community observatory in Placerville has has shared stellar views of the night ...

"Seeing the Earth from above is a powerful reminder of our interdependence," said Thomas Pesquet. The words of France's 10th ...

A new SETI framework proposes searching lunar soil for microscopic fragments of extraterrestrial technology that could have drifted through interstellar space and accumulated on the Moon during ...

From Mercury's cratered surface to Neptune's deep blue atmosphere, NASA's stunning images reveal the striking beauty and diversity of all eight planets.