NASA's Juno spacecraft has again captured stunning images of Jupiter and its moon Io, providing more insights into the solar ...

Galileo Galilei's telescopic discovery of Jupiter's four moons in 1610 revolutionized astronomy and supported heliocentric ...

Ganymede is an enormous moon, larger than any other we’ve found, including our own, and may one day be the centerpiece of ...

Research and development is underway to create robots that can hunt for signs of life in the vast oceans that exist under the ...

Amazing views of Jupiter over the years via the Hubble Space Telescope. The moons of Io, Ganymede and hazy Uranus can be ...

When it did, the spacecraft captured a startling image of a Jupiter solar eclipse as Ganymede passed between the Sun and the planet. Ganymede casts its shadow on Jupiter as the Juno spacecraft ...

Europa was one of four moons discovered on Jan. 7, 1610, by astronomer Galileo Galilei. Speaking of Galileo, this photo was ...

Italian astronomer Galileo Galilei peered through his newly improved 20-power homemade telescope at the planet Jupiter. He ...

Galileo’s repeated observations over several nights and realized they were moons orbiting the gas giant. And thus, Io, Europa and Ganymede became known as the Galilean moons of Jupiter.

Researchers accounted for the previously overlooked structures of the dwarf planet and moon in computer simulations of a ...

Pluto may have got romantic to capture its largest moon, colliding and engaging in a passionate but icy 10 hour kiss with ...

Whether you're an experienced astronomer or simply enjoy gazing at the night sky, this January offers a rare opportunity to witness a dazzling array of planets.