Do the other planets have atmospheres and are they different to Earth's?
1 Answer
All of the planets in the solar system have an atmosphere, all different to that of Earth.
Explanation:
Mercury has a very thin atmosphere containing Hydrogen, Helium, Oxygen and traces of other substances. It's atmosphere is actually mostly particles from the sun (solar wind) and surface decay and is constantly being swept away due to the solar wind. It has a surface pressure of about 0.5 nPa.
Venus has a dense hot atmosphere of mainly carbon dioxide. It has a surface pressure of 9.2 MPa.
Earth has an atmosphere of 78% Nitrogen, 21% Oxygen and some Neon, Carbon Dioxide and other gasses. It has a surface pressure of 101.4 KPa.
Mars has an atmosphere which is mainly Carbon Dioxide. It has a surface pressure of 600 Pa.
Jupiter has an atmosphere which about 90% Hydrogen and 10% Helium. It has no surface being a gas giant.
Saturn has an atmosphere containing Hydrogen and Helium. It also contains Sulphur which makes it yellow. It has no surface being a gas giant.
Uranus has an atmosphere containing Hydrogen and Helium. It also contains ices such as water, ammonia and methane. It has no surface being an ice giant.
Neptune has an atmosphere containing Hydrogen and Helium. It also contains ices such as methane. It has no surface being an ice giant.
