Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...

Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

Since the 1970s, Voyager 1 has been making groundbreaking discoveries. But its journey is far from over, and it's still ...

NASA’s “What’s Up” guide for October 2025 outlines the month’s best celestial events, including Moon–planet pairings, meteor showers, and stargazing tips for observers worldwide.

Previously undetected organic compounds have been found in ice ejected into space from Enceladus, making the satellite a ...

With the recent discovery of traces of what may or may not be or have been life on Mars, eyes are turning to another world in ...

"Complex chemical reactions" discovered in fresh ice grains from Saturn’s moon Enceladus renews hopes that it may harbor life ...

The case for a newborn ocean on Saturn's moon Mimas continues to build.

The Cassini spacecraft flew by the small, icy moon in 2008, collecting information that suggests it shoots out molecules that ...

Scientists found new evidence to strengthen the case that Enceladus, small moon of Saturn about 310 miles wide, may have ...

The ringed giant Saturn reaches opposition providing the best views of the planet all year. Opposition occurs as Earth passes between an outer planet, like the ringed gas giant Saturn. This places it ...

Detections of near infrared emissions in Saturn’s ionosphere (left) show dark bead-like features embedded within bright aurora. In the stratosphere (right), 500 kilometers below, a lopsided ...