Research into Jupiter’s moons shows Io and Europa did not evolve apart but formed with opposite compositions from the ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

On Earth, deep-sea vents may have given rise to the planet’s first life. But nothing of the sort seems to be happening at the ...

On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he looked at Jupiter through his telescope, he saw what he thought were three tiny ...

Although Europa is the fourth largest of Jupiter’s 95 moons, it’s the smallest of the Galilean moons – the largest being Ganymede. With an equatorial diameter of about 3,100 kilometres, Europa is ...

The giant planet Jupiter has nearly 100 known moons, yet none have captured the interest and imagination of astronomers and space scientists quite like Europa, an ice-shrouded world that is thought to ...

Live Science reports on Jupiter’s opposition on January 10, 2026, explaining what it means, how bright Jupiter will appear, where to find it in the sky, and how to see the planet and its four main ...

With the moon out of the way on Jan. 18, bright Jupiter and Saturn become stand-outs in the January night sky.

Jupiter steals the spotlight in January as it reaches its brightest and biggest appearance of the year. The month also ...

The predawn hours of Aug. 8 present a perfect opportunity to see Jupiter's four largest moons line up next to the "King of the Planets" as it voyages through the stars of the constellation Gemini.

The new moon tonight turns the sky into a natural observatory, stripping away glare and letting Jupiter, Saturn and the ...

"In our solar system, the most massive moon is Ganymede, which is still extremely small compared to what we are inferring ...