On March 8, 1979, NASA's Voyager 1 spacecraft discovered active volcanoes on Jupiter's moon Io. Before Voyager 1 flew by Io, scientists believed the moon to be a dead world much like Earth's moon.

What can a sample return mission from Jupiter's volcanic moon, Io, teach scientists about planetary and satellite (moon) ...

Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised ...

Saturn surpasses Jupiter with 128 newly discovered moons, becoming the planet with the most moons in our solar system.

Scientists say a vast region of unexpectedly high temperatures in Jupiter's upper atmosphere was caused by a massive wave of solar wind.

Jupiter, with the shadow of its moon, Io. Source ... including Pioneer 10 and 11, Voyager 1 and 2, Cassini, New Horizons, and Juno, to name but a few. Pioneer 10 was the first spacecraft to ...