NASA’s Galileo spacecraft, which was designed to study the large, gaseous planet Jupiter and its moons, first caught hints of ...

Callisto, one of Jupiter’s largest moons, looks like a boring, crater-filled world. It doesn’t seem to have much going on ...

The presence of an ocean leaves open the possibility that it could host life. Another nearby moon, Europa, is also considered ...

Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

"The data from the termination shock encounter will be a treasure trove for space physicists worldwide who are eager to ...

By Marc J. Berkowitz, Defense Opinion Writer. The United States has ceded its leadership position in space-based positioning, navigation and timing (PNT), with stark ramifications for most all U.S.

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, ...

NASA’s Jet Propulsion Laboratory described the complicated maneuver that will get the Trailblazer in a position to reach ...

That’s quite a big gap, as it turns out. It covers fields from gigantic bodies like the Sun and Earth, as well as those ...

A SpaceX Falcon 9 booster performed a record-breaking flight on Saturday, highlighting the company's ability to reuse its ...

Earth's Moon: NASA's Galileo spacecraft took this image of Earth's Moon on Dec. 7, 1992, on its way to explore the Jupiter system in 1995-97. The Moon is Earth's only natural satellite.

SpaceX early Saturday launched another 21 Starlink satellites aboard a record-setting Falcon 9 first-stage booster from ...