Discover the incredible story of NASA's New Horizons mission, from its 2006 launch aboard an Atlas V rocket to its historic ...

Gas giant Saturn has significantly extended its "who has the most moons in the Solar System" competition, with 11 more moons ...

It’s a small world after all, because today, we’re shrinking Earth to the size of Pluto. But if our planet was this tiny, how ...

President Donald Trump and his NASA administrator are reviving the Pluto debate again — apparently at the urging of “Star ...

NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump ...

Astronomers have found four new moons orbiting Jupiter and 11 new moons around Saturn.

Dragonfly will explore the giant Saturn moon Titan by air, helping scientists learn about the proto-ingredients of life on ...

Add Yahoo as a preferred source to see more of our stories on Google. A view of Saturn and Titan, the planet's largest moon, from the Cassini spacecraft. - NASA/JPL-Caltech/Space Science Institute ...

This image shows the complex distribution of molecular gas in the Central Molecular Zone (CMZ) of the Milky Way. It was obtained with the Atacama Large Millimeter/submillimeter Array (ALMA), in which ...

(CNN) — Saturn’s largest moon, Titan, is one of the solar system’s oddities. Now, researchers have unlocked key insights about this mysterious moon, including how it came to be. The answer may also ...