A 'hot Jupiter' exoplanet with a surface temperature hot enough to vaporise iron has been dubbed 'one of the most extreme planets in the universe' by astronomers. It orbits its star 20 times closer than the Earth orbits the Sun and is 'very exotic' as it has a permanent day side always exposed to the light of its 'very bright' host star. CHEOPS: A MISSION TO CHARACTERISE KNOWN EXOPLANETS CHEOPS is the shortened name for ESA's CHaracterising ExOPlanet Satellite mission. It will make high-precision observations of the planet's size as it passes in front of its host star. The star around which WASP-189b orbits is very different from our Sun - it is considerably larger and more than 3,600 degrees Fahrenheit hotter.

Source: Daily Mail September 28, 2020 10:57 UTC