monroe
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2021-02-02 01:06:11 UTC
Data from the Galileo spacecraft indicate that Jupiter's ring system may be formed by dust kicked up as interplanetary meteoroids smash into the giant planet's small innermost moons.
- Scientists have long wanted to study comets in some detail, tantalized by the few 1986 images of comet Halley's nucleus.
- The lack of craters might be due to layers of ice just below the surface.
- In 1675, Italian-born astronomer Jean-Dominique Cassini discovered a "division" between what are now called the A and B rings.
- Seventeen days later, its largest moon, Triton, was also discovered.
- Some of these hydrocarbons go on to form grains that make up the "sand" of vast dune fields on Titan's surface.
- Hawaii's Mauna Kea volcano is taller from base to summit than Mount Everest, but most of it is underwater.
- Some of these hydrocarbons go on to form grains that make up the "sand" of vast dune fields on Titan's surface.
- Surface variations of 9800 feet (3 kilometers) seen on this moon imply that it, like Pluto, has water ice that runs deep in its structure.
- The finding implies the plumes are being fed by this vast liquid water reservoir.
- More frequent visitors to the inner solar system are called short-period comets.
- In 2007, researchers used ground-based radars to study the core, and found evidence that it is partly molten (liquid).
- These newly discovered, provisional moons are reported by astronomers and acknowledged with a temporary designation by the International Astronomical Union.
- This current takes the path of least resistance along Jupiter's magnetic field lines to the planet's surface, creating lightning in Jupiter's upper atmosphere.
- Neptune's atmosphere extends to great depths, gradually merging into water and other melted ices over a heavier, approximately Earth-size solid core.
- Our solar system is moving with an average velocity of 450,000 miles per hour (720,000 kilometers per hour).
- This "Great Dark Spot" was large enough to contain the entire Earth, spun counterclockwise, and moved westward at almost 1,200 kilometers (750 miles) per hour.
- Jupiter took shape when the rest of the solar system formed about 4.5 billion years ago, when gravity pulled swirling gas and dust in to become this gas giant.
- One of Titan's great mysteries is the source of its methane, which makes all of this complex chemistry possible.
The sun at the heart of our solar system is a yellow dwarf star, a hot ball of glowing gases.