2022-02-13 15:34:18 UTC
- The mantle extends from the top of the partially molten layer to the bottom of the moon's crust.
- Europa orbits Jupiter every 3.5 days and is locked by gravity to Jupiter such that the same hemisphere of the moon always faces the planet.
- These shepherd moons help keep the rings in line.
- Jupiter also has three rings, but they are very hard to see and not nearly as intricate as Saturn's.
- The magnetosphere tail behind Uranus opposite the sun extends into space for millions of miles.
- This unique tilt makes Uranus appear to spin on its side, orbiting the sun like a rolling ball.
- This is surprising, given that the dwarf planet must have been hit by numerous large asteroids during its 4.5 billion-year lifetime.
- In the stories, the Titans were the ancestors of the human race.
- NASA's Dawn spacecraft, launched in 2007, orbited and explored asteroid Vesta for over a year.
- Fortunately, it is a safe distance of around 28,000 light years away Earth.
It is also the only other place in the solar system known to have an earthlike cycle of liquids flowing across its surface.