Along the lunar orbital path, the point of closest proximity is known as perigee, which is when the moon is, on average, ...

Peppered throughout the universe are balls of gas that never got promoted to stardom. In a strange twist, evidence has just ...

Astronomers resolve longstanding mystery of Gliese 229B's dimness, despite its considerable mass. A Caltech-led team ...

Scientists say a celestial object discovered decades ago is actually twins orbiting each other. The discovery was published ...

Exploring the Enigmatic Secrets of Europa, Jupiter's Icy Moon Scientists were puzzled by one of Jupiter's fascinating moons, ...

Just a few smashups in the asteroid belt may account for 70 percent of Earth’s meteorites, limiting what’s known about our solar system’s history.

The Europa Clipper mission, NASA's largest planetary science spacecraft to date, aims to determine if Jupiter's moon Europa ...

Considering that at its closest, Jupiter is just 590 million kilometers (365 million miles) away, and never gets more than a ...

NASA is launching a coding competition to get some much-needed help with organizing images from April's solar eclipse for the ...

Mission to Europa marks the first dedicated exploration of an extraterrestrial ocean world that scientists believe may have ...

NASA’s Europa Clipper lifted off aboard a SpaceX Falcon Heavy rocket from the Kennedy Space Center for an anticipated ...

Two Southwest Research Institute instruments were launched aboard NASA's Europa Clipper spacecraft on Oct. 14 from the agency ...