The moons, captured in separate shots, are scaled to show their relative sizes (left to right): Io, Europa, Ganymede and Callisto. Analysis based on earlier missions indicates oceans of liquid, ...

Flyby of Ganymede within 600 miles/1,000 km—June 7, 2021. Flyby of Europa within 200 miles/320 km—September 29, 2022. Flybys of Io within 900 miles/1,500 km—December 30, 2023 and February 3 ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

Jupiter (right) and the Galilean satellites (right to left) Io, Europa, Ganymede, and Callisto. Cutaways show the interior states of Ganymede and Callisto after many impacts by icy planetesimals ...

Io, Europa, Ganymede and Callisto are, like Earth’s Moon, relatively large, spherical complex worlds. Two previous NASA missions have sent spacecraft to orbit the Jupiter system and collected ...

In a zoomed-in image released by NASA on March 16, Io and Europa are seen as small cloudy orbs compared to Jupiter's colossal size. ... Ganymede, Callisto and Europa. You Might Also Like.

New research shows auroras can also be seen on the Galilean moons of Jupiter: hypervolcanic Io, icy Europa, quirky Callisto and gigantic Ganymede. Auroras exist throughout the cosmos, but often in ...

But the current study also gives insight into how Jupiter’s Galilean moons — Io, Europa, Ganymede, and Callisto — formed, as their orbits indicate these moons likely formed in the places ...

Ganymede and Io are one-half of the Galilean moons, discovered by Galileo Galilei in the 17th century. They’re quite different from one another: Ganymede is icy, and Io is volcanic.

Science has known that Jupiter has a quartet of moons since the days of Galileo. Those moons include Io, Europa, Ganymede, and Callisto. Each of the four moons is significantly different than the ...

But rather than plunging into Jupiter as had previously been planned, the spacecraft may now crash into Ganymede or Callisto, two of Jupiter's Galilean moons, Europa Clipper mission project ...

As part of a research plan submitted by Scott Bolton, Juno's principal investigator, the spacecraft will fly to within 1,000km of the surface of Ganymede this summer to within 320km of Europa in ...