Researchers from the Juno mission have finally solved a mystery that has puzzled scientists for over four decades.

New measurements from NASA's Juno probe have seemingly put to bed the possibility of a magma ocean beneath the surface of Io.

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system.

German astronomer Simon Marius is best remembered for his disputes with Galileo Galilei over priority for discovering Jupiter ...

NASA's Juno spacecraft captures stunning images of Io's volcanic surface, revealing fresh lava flows and sulfur dioxide gas ...

Some tantalising—but uncertain—images from telescopes nevertheless show things ... Last year saw the launch of a European ...

Io, roughly the size of Earth's Moon, is home to approximately 400 volcanoes that continuously erupt, contributing to its ...

The December Cold Moon is due to light up the night skies this week. It will appear largest at 4:01 a.m. ET on Sunday, December 15, and marks the final full moon of the year. The Cold Moon is the name ...

The Geminid meteor shower put on a dazzling show this week, delighting skywatchers worldwide. The Geminids are one of the ...

NASA and ESA’s Hubble Space Telescope has been observing the outer planets through a program called OPAL (Outer Planet ...

Scientists with NASA’s Juno mission to Jupiter have discovered that the volcanoes on Jupiter’s moon Io are each likely ...