Our solar system's blue gas giant is far larger than Earth, at more than 17 times Earth's mass and nearly 58 times Earth's volume, according to NASA.Neptune's rocky core is surrounded by a slushy ...

However, at Neptune’s surface, the gravity is only about 1.1 times the gravity we experience on Earth. In other words, if ...

Neptune is called an “ice giant” because it’s mostly made of a thick, slushy mix of water, methane, and ammonia, which ...

Neptune, at some 3 billion miles from the sun, is a dark, blustery world, ... When these particles strike gases, they heat up and glow. The results are colorful light displays.

As with the gas giants, Neptune’s outer shell is primarily made up of hydrogen and helium. Deeper within, the mantle and core are no longer gassy but instead rich with compressed exotic ices.

The four gas planets are Jupiter, Saturn, Uranus and Neptune. You could not stand on their surface as they are not solid. They are giant balls of hydrogen , helium and other gases.

Auroras Are Spotted on Neptune for the First Time, and Lead to a New Mystery. ... slam into an atmosphere and bounce off gases. That particle collision briefly causes flashes of light.