One of the brightest stars in the night sky seems to be orbited by a planet like Jupiter. The news is sure to cheer fans of the Avatar series, which centers on a moon that orbits a fictional gas giant ...

Jupiter's four Galilean moons will line up in front of Jupiter in the early morning sky on Aug. 8. The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

Electrons released when cosmic rays strike water-ice can provide energy for microbes and facilitate the formation of complex ...

Welcome to SolarBalls, where animated content combines entertainment with education about the solar system and the universe.

The next full moon is Saturday, Aug. 9, and is sometimes called the Sturgeon Moon. It gets that name from when "The Great ...

A recent investigation by researchers at NYU Abu Dhabi suggests that cosmic rays—high-energy particles that travel through ...

Tides on such moons would be very strong – "probably a surfer's paradise," Kaltenegger said. "From watching Jupiter's moon Io, we'd expect a big potential for tidally induced volcanism ...