A light year is the distance in which light travels in a year, 5.9 trillion miles (9.5 trillion km).
The receiving came from the planet WASP-76b outside our solar system marking the first time, that could provide further insight into how habitability could be possible on distant planets.Matthew Standing, an ESA Research Fellow studying exoplanets, said in the statement: "WASP-76b is an intensely hot gas giant planet where it likely rains molten iron. Despite the chaos, it looks like we’ve detected the potential signs of a 'glory'. It's an incredibly faint signal."The findings were published in the journal Astronomy and Astrophysics.The Glory lights — a rainbow-like effect — are the rings of right that are formed under the specific environment of a planet reflecting the clouds likely composed of spherical water droplets that have either lasted for three years or are being replenished."There's a reason no glory has been seen before outside our Solar System – it requires very peculiar conditions," Olivier Demangeon, who is a team leader and an astronomer at the Institute of Astrophysics and Space Sciences in Portugal, said in a statement, quoted by the Space.com."First, you need atmospheric particles that are close-to-perfectly spherical, completely uniform and stable enough to be observed over a long time. The planet's nearby star needs to shine directly at it, with the observer at just the right orientation."The hot planet was discovered in 2013 and resides 30 million miles from its yellow star — similar to the distance between Sun and Mercury.