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.

2024年5月15日 · Jupiter’s moon Europa was captured by the JunoCam instrument aboard NASA’s Juno spacecraft during the mission’s close flyby on Sept. 29, 2022. The images show the fractures, ridges, and bands that crisscross the moon’s surface.

Europa’s surface is made of water ice and so it reflects 5.5 times the sunlight than our Moon does. Europa orbits Jupiter at about 417,000 miles (671,000 kilometers) from the planet, which itself orbits the Sun at a distance of roughly 500 million miles (780 million kilometers), or 5.2 astronomical units (AU).

2014年11月21日 · The puzzling, fascinating surface of Jupiter's icy moon Europa looms large in this newly-reprocessed color view, made from images taken by NASA's Galileo spacecraft in the late 1990s.

2025年1月17日 · Europa’s frozen surface is crisscrossed with dark and bright stripes and curvilinear ridges and grooves. Spatter cones along some of the grooves again suggest fluid eruptions from below. The relief is extremely low, with ridge heights perhaps a few hundred metres at most.

2025年1月14日 · The rock-hard, icy surface of Jupiter’s moon Europa has huge cracks and jagged ridges. It's believed that these cracks are caused by the flexing from Europa's tides. This close-up image of Europa's surface was taken by NASA's Galileo orbiter.

2024年11月4日 · Europa’s surface is made of water ice and so it reflects 5.5 times the sunlight than our Moon does. Europa orbits Jupiter at about 417,000 miles (671,000 kilometers) from the planet, which itself orbits the Sun at a distance of roughly 500 million miles (780 million kilometers), or 5.2 astronomical units (AU).

2019年1月7日 · Isolated hills or "knobs" on the surface of Europa. Although surface relief on Europa is typically very small (<100-200 meters or 110-220 yards), a steep sided knob known as Cilix is the most striking topographic feature on Europa, and is about 1.5 kilometers (1 mile) high.

Slightly smaller than Earth's Moon, Europa’s water-ice surface is crisscrossed by long, linear fractures, cracks, ridges and bands. The moon’s ice shell is probably 10 to 15 miles (15 to 25 kilometers) thick, beneath which the ocean is estimated to be 40 to 100 miles (60 to 150 kilometers) deep.

2014年11月24日 · The puzzling, fascinating surface of Jupiter’s icy moon Europa looms large in this newly-reprocessed color view, made from images taken by NASA's Galileo spacecraft in the late 1990s.