Looking for a sky event this week? Check out our full Sky This Week column. October 17: Catch open cluster M34 Jupiter stands ...

In new images captured by NASA's Juno spacecraft, fiery volcanic activity is seen erupting across Jupiter's moon, Io. Io is the third-largest of Jupiter's four Galilean moons and is the most ...

A study utilizing ALMA observations of Io's atmosphere reveals a significant depletion of lighter sulfur isotopes, suggesting extensive and prolonged volcanic activity throughout its 4.57 billion-year ...

Infrared mapping tech aboard the spacecraft sheds light on the volcanic activity of Io, Jupiter's second-smallest Galilean moon reading time 2 minutes It’s not a big moon relative to a few of its ...

Sky This Week is brought to you in part by Celestron. Friday, October 17The Summer Triangle is now sinking in the west late ...

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing to ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Can ground-based telescopes obtain the same image resolution of planetary objects as space-based telescopes, or even spacecraft directly orbiting other worlds? This is what a recently submitted study ...

The volcanic surface of Jupiter's huge moon Io got a stunning close-up thanks to NASA's Juno mission. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

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 ...