Turn a telescope to the eastern sky in the hours following midnight on Nov. 5 to see two colossal shadows darken the cloud ...

Trapped in a gravitational push and pull between Jupiter and other Jovian moons, Io is constantly being stretched and ...

Io isn’t just another moon, it’s the most volcanically active body in the entire solar system. Orbiting Jupiter, Io is ...

Comet C/2025 A6 (Lemmon) is brightening fast! Discovered in January by the Mount Lemmon Survey, it swings closest to Earth on ...

During its close flyby of Jupiter's moon Io on December 30, 2023, NASA's Juno spacecraft captured some of the most detailed imagery ever of Io's volcanic surface. In this image, taken by the JunoCam ...

What type of lander could touch down on Jupiter's volcanic moon, Io? This is what a recent paper presented at the AIAA 2025 Regional Student Conference hopes to address as a team of student engineers ...

With a glance toward the southern sky this month, you’ll see Jupiter, the largest planet in our solar system. With a telescope or good binoculars, you may also see several of Jupiter’s 79 known moons.

If observations of gas velocities around WASP-39b revealed similar patterns, Retherford speculates, “that would be the smoking gun as an exomoon.” A composite view of Jupiter and its volcanic moon Io, ...

Turn your eyes to the east in the early morning hours of Sept. 16 to see the moon conspire with Jupiter and the bright stars of the Gemini constellation to create a lopsided rectangular formation in ...

Jupiter’s Galilean moons often transit the planet’s disk one at a time — tonight, however, Io and Europa cross the disk together. The two moons even appear to partially overlap as their transits begin ...

A laser-based ice drill can bore deep, narrow channels into ice while keeping both mass and energy requirements lower than ...

Be sure to look up for one of October's most beautiful sky pairings Cheng Xin/Getty On Monday, Oct. 13, into early Tuesday, Oct. 14, the moon and Jupiter will appear side by side just before midnight ...