Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and Callisto (in that order). Credit: Space.com | footage credit: ESA/DLR/FU Berlin ...

Sixty-seven orbits of Jupiter. Two close-ups of its moon Europa—where astrobiologists think microbial life may exist—21 flybys of far-out Callisto, and nine months in orbit around the biggest ...

Watch a bright Moon dominate the sky, trace the Winter Hexagon, and continue enjoying the evening parade of planets in the ...

In a celestial event known as a great alignment the five planets will be discernible with the naked eye, but to see Neptune ...

These pinpricks of light are actually Jupiter's four largest moons, now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter ...

Europa Clipper - one of the most advanced spacecraft ever sent to another planet - aims to explore Jupiter's icy moon ...

In February 2025, a rare planet parade will grace our skies. Find out when, where, and how to witness this cosmic spectacle ...

It will conduct studies of Jupiter's three largest icy moons—Ganymede, Europa and Callisto, all of which are thought to harbor subsurface oceans, making them prime targets in the search for ...

NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...

In addition, it is believed that internal oceans exist on Jupiter’s moons Ganymede and Callisto and Saturn’s moons Titan and Enceladus. Liquid water is essential for life as we know it ...

and the equivalent of Jupiter in Hellenic mythology. They are Io, Europa, Ganymede and Callisto. The experiment was developed and built under Italian leadership with international collaboration, ...