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Overview.

Europa's position in space is within the powerful gravitational field of Jupiter. This resurfacing evidently consists of the outflow of water from the interior to form an instant frozen ocean.

Io's volcanic activity generates particles that are pulled into Jupiter's magnetic field, contributing to a doughnut-shaped cloud of plasma in the satellite's orbit. Spatter cones along some of the grooves again suggest fluid eruptions from below. Jupiter's satellite Io as observed by the Galileo spacecraft, April 4, 1997.

There are few impact craters on Europa—the number per unit area is comparable to that on the continental regions of Earth, indicating that the surface is relatively recent. Europa, the ice-covered moon of the planet Jupiter, may be able to support life. A lively and informative new podcast for kids that the whole family will enjoy! In Greek mythology, Europa (/ j ʊəˈr oʊ p ə, j ə-/; Ancient Greek: Εὐρώπη, Eurṓpē, Attic Greek pronunciation: [eu̯.rɔ̌ː.pɛː]) was the mother of King Minos of Crete, a Phoenician princess of Argive origin, after whom the continent Europe is named. Europa is thought to have all three.

Seen through a telescope from Earth, Io appears reddish orange, while the other moons are neutral in tint. Video: Hubble Directly Images Possible Plumes on Europa, produced by NASA's Goddard Space Flight Center/Katrina Jackson.

might find it. The sky is slightly hazy, but is nearly black, and stars are visible even during the day. moons, produces internal friction and heat within Europa.

This strong gravitational "pull" has the The diffuse glow on the right limb also has plumelike characteristics. The Trojans occupy regions 60° ahead of and behind the position of the planet in its orbit. The relative brightnesses of Io's features are enhanced with added colour, red being the most intense, yellow-green moderate, and blue the faintest. of life. Its orbit is nearly circular. NASA gives three pieces of evidence that strongly support the presence of Europa's subsurface ocean. Amalthea has a remarkably low density, implying a highly porous structure that probably resulted from internal shattering by impacts. The possibility of such an ocean arose from Voyager data, and high-resolution Galileo images suggested fluid activity near the surface. moon locked into an orbit with one hemisphere constantly facing Jupiter.

Life in Europa's subsurface oceans could be supported in similar ways. But after centuries of telescope observation, decades of spacecraft exploration, and several It has an icy crust supported by a subsurface ocean. an even better candidate for finding life than Mars.

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So, if there is life in Europa's subsurface ocean, it could be scattered about the surface of the planet where landers or rovers The closer group—Leda, Himalia, Lysithea, and Elara—has prograde orbits.

The surface of Europa is very cold and covered with ice. Investigators believe that the ocean is rich in dissolved ions, particularly magnesium, sodium, potassium, robots exploring its surface, the promise of discovering life on Mars remains elusive. Jupiter's moon Io with Jupiter in the background, photographed by the Voyager 1 spacecraft on March 2, 1979.

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