One of the big surprises: Despite the moon's cooled crust, the data shows Io maintains liquid hot lava just below the ground.

At the time, the Earth would have been far closer to the moon than it is today, making it perhaps twice as large in the lunar ...

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

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

Juno’s latest discoveries have pulled back the veil on Jupiter’s harsh atmosphere and the fiery volcanic world of Io. The ...

NASA just spotted the most powerful one yet NASA's Juno spacecraft launched ... pulls the moon closer to Jupiter, and, at times, pushes it farther away, weakening the planet's gravitational ...

An alternate explanation that fits the evidence is that Vesta was once part of a planet – but which planet that might been ...

On one of Juno's recent trips around Jupiter, the spacecraft — which has been orbiting the planet since 2016 — used so-called "radio occultation" to send a signal through Jupiter’s thick ...