Getting from Earth to space isn’t just about speed—it’s about planning the right trajectory. The Moon, our closest neighbor, ...

Studying young gas giant exoplanets' compositions and orbits could help us better understand how our own solar system's gas ...

Using data collected by NASA's Juno spacecraft as it flew past Jupiter's highly volcanic moon Io in late 2023 and again in ...

For centuries, Jupiter reigned as king of the moons. Initially, the Big Four, discovered by Galileo, and then as optics and astronomy advanced, more and more, smaller and smaller bodies, until Big J ...

The ringed gas giant Saturn has officially replaced Jupiter as the planet in our solar system with the most moons. The International Astronomical Union officially recognized 128 new moons orbiting ...

Jupiter sets around 3:15 a.m. Mars ... around the Sun that is large enough to pull itself into a nearly round shape but has not been able to clear its orbit of debris," according to International ...

After Friday's spectacle, a "planet parade" of this size won't appear in the night sky for several years, experts say.

The smashups are thought to have occurred at least 100 million years ago, but the moons they created are new to astronomers.

Using data collected by NASA’s Juno spacecraft as it flew past Jupiter’s highly volcanic moon Io in late 2023 and again in ...