In Depth | Titan – NASA Solar System Exploration
网页Learn about Saturn's largest moon, Titan, an icy world with a dense atmosphere and liquid methane on its surface. Find out how Titan compares to Earth and other moons in size, orbit, structure, formation, and surface features.
In Depth | Europa – NASA Solar System Exploration
网页Learn about Europa, one of Jupiter's icy moons with a possible global ocean of salty water beneath its surface. Find out how NASA's missions have explored Europa and what makes it a promising place to search for life beyond Earth.
In Depth | Moons – NASA Solar System Exploration
网页Learn about the different types of moons in our solar system, from the spherical Earth's Moon to the lumpy Phobos and Deimos of Mars. Explore the names, origins, features and discoveries of hundreds of moons orbiting planets and dwarf planets.
Io: A Volcanic Puzzle – NASA Solar System Exploration
网页1995年11月9日 — Io is the most volcanically active moon in the solar system, with hundreds of volcanic craters and a yellow-orange surface. Learn how Galileo studied Io's volcanoes, how they are different from Earth's, and why they are triggered by Jupiter's tidal forces.
Ganymede 3D Model - NASA Solar System Exploration
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Cassini Data Show Ice and Rock Mixture Inside Titan
网页2010年3月10日 — The finding, to be published in the March 12 issue of the journal Science, shows how Titan evolved in a different fashion from inner planets such as Earth, or icy moons such as Jupiter's Ganymede, whose interiors have split into distinctive layers.
Galleries | Galileo – NASA Solar System Exploration
网页2018年7月11日 — Add Jupiter's moon Ganymede, which is bigger than two of the solar system's nine planets, to the growing list of worlds with evidence of liquid water under the surface.
Hydrated Salt Minerals on Ganymede's Surface: Evidence of an …
网页2001年5月25日 — Reflectance spectra from Galileo's near-infrared mapping spectrometer (NIMS) suggests that the surface of Ganymede, the largest satellite of Jupiter, contains hydrated materials.
In Depth | Jupiter – NASA Solar System Exploration
网页Jupiter is the largest planet in our solar system, with a radius of 43,440.7 miles (69,911 kilometers), 11 times wider than Earth. It orbits the Sun at an average distance of 484 million miles (778 million kilometers), taking 12 Earth years to complete one orbit.
In Depth | Triton – NASA Solar System Exploration
网页Triton is the largest and most unusual moon of Neptune, with a frozen nitrogen crust, a rocky core, and a thin atmosphere. It orbits in the opposite direction of Neptune's rotation and has active geysers and volcanoes.