More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...

NASA's Juno spacecraft made a close flyby of Jupiter moon lo. See an animation of the images the probe captured created by Koji Kuramura and Gerald Eichstädt. Credit: NASA/JPL-Caltech/SwRI/MSSS | ...

NASA's Juno Probe captured a cloud formation on Jupiter resembling a dolphin, seen by Brian Swift and Sean Doran. This ...

Only one in 10 people worldwide will see the entire eclipse from start to finish - here's everything you need to know ...

The space rock is heading in our direction at some 18,700 miles per hour, according to the space agency's data.

NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented ...

A scientific discovery that could transform the study of warp drive is now under wraps at the U.S. Defense Advanced Research ...

An asteroid that could level a city now has a 3.1-percent chance of striking Earth in 2032, according to NASA data released Tuesday — making it the most threatening space rock ever recorded by modern ...

The gossamer ring is made up of dust particles from Jupiter's moons. Jupiter has many moons, including Ganymede, Callisto, Io, and Europa. Ganymede is the largest moon in our solar system. Credit: ...

Here’s what else you need to know to Get Up to Speed and On with Your Day. 1. Federal agencies. Dozens of federal workers gathered in Washington, DC, on Tuesday to pro ...

Gaia-4b, a 12-Jupiter-mass exoplanet, is the first confirmed using astrometry. This breakthrough paves the way for detecting ...

The solar system's largest moon, Ganymede, is captured here alongside the ... when Cassini was farther from Jupiter. This image from NASA’s Juno spacecraft captures several storms in Jupiter’s ...