Europa / jʊˈroʊpə / ⓘ, or Jupiter II, is the smallest of the four Galilean moons orbiting Jupiter, and the sixth-closest to the planet of all the 95 known moons of Jupiter. It is also the sixth-largest moon in the Solar System.

New comprehensive mapping of the radiation pummeling Jupiter’s icy moon Europa reveals where scientists should look -- and how deep they’ll have to go -- when searching for signs of habitability and biosignatures.

2019年1月7日 · These 15 frames show the great variety of surface features on Jupiter's icy moon, Europa, which have been revealed by the Galileo spacecraft Solid State Imaging (CCD) system during its first six orbits around Jupiter from June 1996 to February 1997. North is to the top of each of the images.

Europa orbits Jupiter every 3.5 days and is locked by gravity to Jupiter, so the same hemisphere of the moon always faces the planet. Jupiter takes about 4,333 Earth days (or about 12 Earth years) to orbit the Sun (a Jovian year).

Jupiter’s moon Europa shows strong evidence for an ocean of liquid water beneath its icy crust. In fact, it could have all the ingredients needed for life as we know it. NASA’s Europa Clipper spacecraft will perform dozens of close flybys of Europa.

2024年11月4日 · Europa orbits Jupiter every 3.5 days and is locked by gravity to Jupiter, so the same hemisphere of the moon always faces the planet. Jupiter takes about 4,333 Earth days (or about 12 Earth years) to orbit the Sun (a Jovian year).

2025年2月4日 · Europa is the fourth largest of Jupiter’s 95 moons. It’s the sixth-closest moon to the planet. Europa may be one of the most promising places in our solar system to find present-day environments suitable for some form of life beyond Earth.

2024年5月30日 · Jupiter’s icy moon Europa may be the most promising place in the solar system to find present-day environments suitable for life beyond Earth. Quick Facts. Discovered: Jan. 7, 1610, by Galileo Galilei. NASA Missions: Pioneer 10, Pioneer 11, Voyager 1, Voyager 2, Gallileo, Hubble, and Juno spacecraft. Classification: Ocean Moon

Europa is the sixth-largest moon in the Solar System and Jupiter’s fourth-largest satellite. Despite its cracked and discolored appearance, it is the smoothest solid object in the Solar System; its highest peaks, of which there are few, only reach a few …

2020年5月4日 · The surface of Jupiter’s moon Europa features a widely varied landscape, including ridges, bands, small rounded domes and disrupted spaces that geologists call “chaos terrain.” Three newly reprocessed images, taken by NASA ’s Galileo spacecraft in the late 1990s, reveal details in diverse surface features on Europa.