well its your mom and dad
Jupiter
no 2nd Answer: While some of our large planets are made of gasses, Earth's moon, 'Luna', is mostly rocky.
The exoplanets called "Hot Jupiters."
The "exoplanets" known as "Hot Jupiters".
No planet is made of glass, as far as I know. The giant planets - Jupiter, Saturn, Uranus, Neptune - are large, and made mostly of gas. However, they are not fast-moving.The inner planets - Mercury, Venus, Earth, Mars - are slow, fast-moving, and made basically of rock.
No, those are the outer planets.
Solar Gasses. When a star explodes as a nova or a super-nova, it puts out large amounts of gasses that can re-condense to form planets and/or another sun(s).
They are very large, and consist of mostly gases.
Meteorites.
When the sun was young it released an intense solar wind. This prevented the inner planets from developing thick atmospheres like the outer planets. The outer planets, however, were spared from this fate, and were able to accrete large quantities of gasses.
All planets have gravity- Some more than Earth, some less. Other planets that are large enough do have air- but not made up of the same gasses as Earth.
Large planets are typically called gas giants. These planets are composed mostly of gases such as hydrogen and helium, with a relatively small solid core. Examples of gas giants in our solar system include Jupiter and Saturn.