WASP-18b is an exoplanet located 325 light-years from Earth. The planet's mass is 10 times that of Jupiter, and it orbits its star once every 23 hours.
A 2017 study found that this planet has a stratosphere that's loaded with carbon dioxide, but has no signs of water. A stratosphere is a layer of atmosphere in which temperature increases with higher altitudes. The study used NASA's Spitzer and Hubble space telescopes.
For more information about exoplanets, visit https://exoplanets.nasa.gov .
|Mission||Hubble Space Telescope (HST)|
|Instrument Host||Hubble Space Telescope (HST)|
|Host Type||Orbiting Telescope|
|Extra Keywords||Artwork, Atmosphere, Color, Water|
|Date in Caption|