Add Yahoo as a preferred source to see more of our stories on Google. The north polar region of Jupiter's volcanic moon Io was captured by NASA's Juno during the spacecraft's 57th close pass of the ...

Two jovian moons cross each other’s paths from our point of view, appearing to merge in the telescope eyepiece.

A crescent Moon passing in front of our solar system’s largest planet is a rare and brilliant sight. Here's how to see it for ...

Jupiter’s moon Io is the most volcanically active body in the solar system. The gravity of Jupiter squeezing Io generates massive amounts of heat within the moon, powering the volcanoes that burst ...

A NASA probe peered beneath the surface of the most volcanic world in the solar system, revealing scorching heat rising from below its crust. During two recent close flybys of Jupiter’s moon Io, ...

Fresh Io Images Show Dramatic Changes on Jupiter's Most Volcanic Moon ...

Add Yahoo as a preferred source to see more of our stories on Google. A pinkish-brown moon is seen (it's upper hemisphere). There are dark splotches on it. Scientists have measured temperatures ...

A careful statistical comparison of observations recorded by NASA's Juno mission and the Planetary Science Institute's Io Input Output observatory (IoIO) shows that IoIO observations reliably predict ...

Io’s surface may look like a frozen snapshot of volcanic chaos, but just a few feet below, the temperature rises sharply. NASA’s Juno spacecraft has now measured that hidden heat directly, exposing ...