Calories in Classic Italian Sub Sandwich. *Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs. Some of these foods were entered by users and are subject to error.
It remains uncertain why these plumes happen when Europa is farthest away from Jupiter, when the gravitational pull it experiences from the planet is relatively weak. Perhaps the moon's cracks pull open when Jupiter's pull relaxes on Europa, letting water vapor rush out.
With Pluto out of the race, the farthest real planet from the Sun is Neptune. Neptune and its neighbor, Uranus, are known as the ice giants, since they are composed of huge amounts of rock and water, ammonia, and methane ice crystals. Uranus is, on average, 1.79 billion miles from the Sun, while Neptune is, on average, 2.8 billion miles from the Sun. Being more than a billion more miles away from the Sun and receiving only about 40% of the solar radiation received by Uranus, you'd think Neptune would be much colder than Uranus.