In Depth | Jupiter – NASA Solar System Exploration
Jupiter is the fifth planet from our Sun and is, by far, the largest planet in the solar system – more than twice as massive as all the other planets combined. Jupiter's stripes and swirls are actually cold, windy clouds of ammonia and water, floating in an atmosphere of hydrogen and helium.
Jupiter's Moon Callisto May Hide Salty Ocean
1998年10月21日 · Jupiter's second largest moon, Callisto, may have a liquid ocean tucked under its icy, cratered crust, according to scientists studying data gathered by NASA's Galileo spacecraft.
In Depth | Moons – NASA Solar System Exploration
Jupiter's menagerie of moons includes the largest in the solar system (Ganymede), an ocean moon (Europa) and a volcanic moon (Io). Many of Jupiter's outer moons have highly elliptical orbits and orbit backwards (opposite to the spin of the planet).
Callisto - NASA Solar System Exploration
2019年6月26日 · Callisto and Jupiter’s three other largest moons were discovered in 1610 by Italian scientist Galileo Galilei. Almost 400 years later , a spacecraft bearing his name —the Galileo orbiter—began the first in depth study of the Jovian system, including Callisto and its sister moons. Galileo orbited Jupiter until the mission ended in 2003.
In Depth | Earth's Moon – NASA Solar System Exploration
The brightest and largest object in our night sky, the Moon makes Earth a more livable planet by moderating our home planet's wobble on its axis, leading to a relatively stable climate. It also causes tides, creating a rhythm that has guided humans for thousands of years.
In Depth | Jupiter Moons – NASA Solar System Exploration
NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
Io: A Volcanic Puzzle – NASA Solar System Exploration
1995年11月9日 · Some of this material escapes from Io's atmosphere and gets caught up in Jupiter's powerful magnetic field, forming a gigantic doughnut-shaped collection of particles orbiting around Jupiter known as the Io Plasma Torus.
Ocean Inside Jupiter's Moon Callisto May Have Cushioned Big …
2001年11月29日 · A recent image from NASA's Galileo spacecraft adds evidence to a theory that Callisto, the outermost of Jupiter's four large moons, may hold an underground ocean. The image shows a part of Callisto's surface directly opposite from the Valhalla basin where Callisto was punched by a major collision.
Galleries | Galileo – NASA Solar System Exploration
2018年7月11日 · Jupiter's second largest moon, Callisto, may have a liquid ocean tucked under its icy, cratered crust, according to scientists studying data gathered by NASA's Galileo spacecraft.
By Jove! Galileo and Cassini Provide Unique Double Perspective on …
2000年12月13日 · Scientists around the world have recognised the unique opportunity to carry out the first joint spacecraft study of Jupiter - dubbed the Jupiter Millennium Mission by NASA. Between early October 2000 and March 2001, instruments on both Cassini and Galileo will be investigating the Jovian system.