The latest analysis of data from the Galileo probe reveals surprising clues about Callisto, one of Jupiter's moons. These discoveries could change our understanding of this icy satellite.

Using data collected by NASA's Juno spacecraft as it flew past Jupiter's highly volcanic moon Io in late 2023 and again in early 2024, a Southwest Research Institute-led team identified electrons with ...

explorers have even sent a few robotic spacecraft, beginning with the Pioneer and Voyager flyby missions from 1973 to 1979 and later with the Galileo orbiter in 1995, which explored Jupiter.

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...

Getting from Earth to space isn’t just about speed—it’s about planning the right trajectory. The Moon, our closest neighbor, ...

On March 23, 1840, a New Yorker named John William Draper became the first person to take a photo of the moon. On March 23, 1840, a New Yorker named John William Draper became the first person to ...

“Any instrument or spacecraft would stop functioning ... and their presence beyond the distance where Galileo explored. These beams travel along Jupiter’s magnetic field, impacting Io or ...

NASA’s Lunar Trailblazer, launched on 26 February, has lost communication and is running low on power. The spacecraft, meant to detect water ice on the moon, has been unable to perform key ...

Gravity assists have become common practice for spacecraft venturing to the far reaches of our solar system. For instance, last year, the European Space Agency's Jupiter Icy Moon Explorer (JUICE ...

Jupiter’s four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet.