Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

NASA scientists have sought to understand planet Jupiter, the gas giant whose mass is more than the rest of the planets in ...

In March and April 2025, internet users shared a striking image that they claimed showed "Steeple Mountain," a massive point of interest on Jupiter's moon Io. For example, one X u ...

One study from May 2023 presents convincing evidence that the lunar core is solid, rather than liquid. Even more interesting, the study suggests that the moon's nucleus has a similar density to ...

Juno sheds light on Jupiter’s polar storms and Io’s hidden lava, offering insights at two of the solar system’s most extreme ...

New data from the orbiter has unveiled some of the treacherous conditions of not only Jupiter, but its moon Io, the most volcanic body in the solar system. The findings, which come after Juno has ...