In March and April 2025, internet users shared a striking image that they claimed showed "Steeple Mountain," a massive point ...

Io is an incredibly active and extreme place, with glistening lava lakes and volcanic eruptions shooting sulfur and magma to ...

In Io's case, Jupiter's intense gravity tugs on the much smaller moon as the latter orbits in an elliptical (oval-shaped) pattern, meaning Io is closer to Jupiter at some points during its orbit ...

Get Instant Summarized Text (Gist) Data from NASA's Juno spacecraft revealed unexpected variations in electron energies within the Alfvén wing connecting Jupiter and its moon Io. These electrons ...

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.

Jupiter’s moon Io, the most volcanically active body in the solar system, is littered with hundreds of erupting volcanoes. High-resolution images now reveal several dozen lava lakes, researchers ...