|
Canada-0-TATTOOS ไดเรกทอรีที่ บริษัท
|
ข่าว บริษัท :
- 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
- In Depth | Ganymede – NASA Solar System Exploration
In Depth Jupiter’s moon Ganymede is proving to be a fascinating world Not only is it the largest moon in our solar system, bigger than the planet Mercury and the dwarf planet Pluto, but NASA’s Hubble Space Telescope has found the best evidence yet for an underground saltwater ocean on Ganymede
- In Depth | Europa – NASA Solar System Exploration
Formation Jupiter’s large Galilean moons – Io, Europa, Ganymede, and Callisto – likely formed out of leftover material after Jupiter condensed from the initial cloud of gas and dust surrounding the sun, early in the history of the solar system
- In Depth | Callisto – NASA Solar System Exploration
Callisto is Jupiter’s second largest moon and the third largest moon in our solar system It’s about the same size as Mercury In the past, some scientists thought of Callisto as a boring “ugly duckling moon” and a “hunk of rock and ice ” That’s because the crater-covered world didn’t seem to have much going on—no active volcanoes or shifting tectonic plates But data from
- In Depth | Earths 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 The Moon was likely formed after a Mars-sized body collided with Earth several billion years ago Earth's Moon is the only
- In Depth | Io – NASA Solar System Exploration
Jupiter's rocky moon Io is the most volcanically active world in the solar system, with hundreds of volcanoes, some erupting lava fountains dozens of miles (or kilometers) high Io’s remarkable activity is the result of a tug-of-war between Jupiter's powerful gravity and smaller but precisely timed pulls from two neighboring moons that orbit farther from Jupiter – Europa and Ganymede Size
- In Depth | Metis – NASA Solar System Exploration
Discovery Metis was discovered in March 1979 by the Voyager science team Overview Orbiting within Io's orbit, which is the innermost of the four largest moons of Jupiter (called the Galilean moons), are four smaller moons named Metis, Adrastea, Amalthea, and Thebe All the moons within this grouping are oddly shaped, lacking either the mass and or fluidity of composition to pull themselves
- In Depth | Moons – NASA Solar System Exploration
Earth's Moon Martian Moons Phobos and Deimos Moons of the Giant Planets 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)
- Europa By the Numbers – NASA Solar System Exploration
Europa is one of the largest of Jupiter’s more than 90 moons It's the sixth-closest moon to the planet
- In Depth | Amalthea – NASA Solar System Exploration
Amalthea and the moon Thebe provide the material for the Gossamer ring Since Io orbits about 422,000 km above Jupiter and, at this close distance, is subjected to extreme tidal flexing from Jupiter's gravity, one would imagine that this even closer satellite would be pulled to pieces
|
|