A new discovery suggests the possibility of an exomoon with an unprecedentedly large mass, thousands of times larger than any ...

Using data gathered by NASA's Juno Jupiter orbiter, scientists estimate that Europa's ice shell is about 18 miles thick — ...

As part of Juno’s extended mission, the spacecraft is making close encounters of Jupiter’s large Galilean moons after having ...

The February 2026 Full Moon peaks on February 2, pairs with bright Jupiter and carries centuries of cultural meaning across ...

There’s no mistaking Jupiter in the sky these winter evenings, rising in the southeast as evening twilight ends. In fact, you should be able to easily see it long before twilight fades. Jupiter is ...

The volcanic hot spot is larger than Lake Superior, spewing eruptions six times the total energy of all of the world's power plants.

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

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

While February is fairly quiet, celestial event-wise, you'll also be able to catch six planets in the sky at once at the end of the month.

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 ...

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 ...

Saturday's clouds have cleared to reveal another full moon, the final of four supermoons beginning in October. We won't see another supermoon until November 2026. Full wolf supermoon around 9:30 pm ...