Helium planet

A helium planet is a planet with a helium-dominated atmosphere. This is in contrast to ordinary gas giants such as Jupiter and Saturn, whose atmospheres consist primarily of hydrogen, with helium as a secondary component only. Helium planets might form in a variety of ways. The Gliese 436 b exoplanet is a candidate helium planet.

Helium planet

A helium planet is a planet with a helium-dominated atmosphere. This is in contrast to ordinary gas giants such as Jupiter and Saturn, whose atmospheres consist primarily of hydrogen, with helium as a secondary component only. Helium planets might form in a variety of ways. The Gliese 436 b exoplanet is a candidate helium planet.