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

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

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

But it hasn't always been this way. Jupiter's four largest moons - Io, Europa, Ganymede and Callisto - were the first ever discovered orbiting another planet. They were spotted by Galileo Galilei more ...

"Scientifically there's a huge amount we can learn from asteroids," says Alan Fitzsimmons, an astronomer at Queens University ...

Here are six spectacular images of moon shared by National Aeronautics and Space Administration (NASA) 1. Captured on December 7, 1992, this image was taken by NASA's Galileo spacecraft. 2. Shared by ...

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.

NASA’s Lucy spacecraft has taken the initial images of the rocky Trojan asteroids that follow and lead Jupiter in its orbit around the Sun. The spacecraft employed L’LORRI (Lucy Long Range ...

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.