James Webb Space Telescope finds a 'hot Jupiter' exoplanet that defies expectations

Exoplanet Smertrios is a hot Jupiter exoplanet with an atmosphere that defies expectations.

The atmospheres of gas giant planets across the Milky Way galaxy can be very different from those in our solar system, the James Webb Space Telescope has found. 

Observations of the distant exoplanet HD149026b, also known as Smertrios, revealed that the planet's atmosphere is rich in what scientists call heavy elements, essentially anything other than hydrogen and helium. In Smertrios' atmosphere, the James Webb Space Telescope detected high concentrations of carbon and oxygen.