Astronomers investigate a potential impact on Saturn after a bright flash was caught on camera. NASA image may show first ...

A stronomers at the Planetary Virtual Observatory and Laboratory (PVOL) are appealing for help, after an image taken by NASA's Mario Rana appears to show an object slamming into Saturn.

F iguring out the day length of Earth is more complicated than you might imagine. While on average a day is 24 hours long, ...

With advancement of space tech, photographs clicked from space over the years illuminate distant worlds in stunning detail.

New Ultra-Black Paint Will Keep Satellites from Polluting Our Night Sky — Here’s How White House erupts at 'liberal activists ...

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about geologically active moons.

The spot we see today isn’t the same one the Italian astronomer Cassini discovered centuries ago, research shows.

The troubled Cassini probe will resume making scientific observations of Jupiter before flying by the giant planet to conduct joint studies with another spacecraft, NASA said Thursday.

In 1665 Italian astronomer Giovanni Cassini spotted—so to speak—a dark oval on Jupiter’s face. It was seen on and off again until 1713, and the recorded location of this “permanent spot ...

In the 1660s, Italian astronomer Gian Domenico Cassini discovered something while looking at the planet Jupiter: a massive spot now known as the planet’s signature. Known as the Great Red Spot ...