Did European astronomers observe the first rainbow outside our solar system?. According to observations from the European Cheops telescope, there is an immense circular rainbow on the exoplanet WASP-76b, which is located 637 light years from our Earth.
This optical phenomenon is similar to a glory, that is to say concentric circles of colors, formed by light, which only takes shape under very specific conditions. Common on Earth, when light is filtered by water droplets, this rainbow phenomenon has only been seen on one other planet: Venus.