There are currently 92 moons known to orbit Jupiter. The four largest – Io, Europa, Ganymede and Callisto – were discovered by Galileo Galilei in 1610 when he pointed the first astronomical telescope ...

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body ...

Jupiter’s moon Io is the most volcanically active world in the Solar System. The gravitational tug-of-war between Jupiter and ...

NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...

"This is the most powerful volcanic event ever recorded on the most volcanic world in our solar system — so that's really saying something." ...

Don't put your binoculars away just yet, the planet parade continues through February. Here's which planets will be visible this month.

Gigantic Asteroid Impact Shifted the Axis of Solar System's Biggest Moon Sep. 3, 2024 — Around 4 billion years ago, an asteroid hit the Jupiter moon Ganymede. Now, a researcher realized that the ...

The findings provide the strongest evidence yet that asteroids may have planted the seeds of life on Earth and that these ...

I pick out North America’s celestial highlights for the week ahead (which also applies to northern hemisphere mid-northern ...