Lisbon [Portugal], October 13 (ANI): The heaviest element ever identified in an exoplanet atmosphere, barium, has been found by astronomers using the Very Large Telescope (VLT) of the European Southern Observatory. They were shocked to find barium in the atmospheres of the exoplanets WASP-76 b and WASP-121 b, two extremely hot gas giants that orbit stars outside of our solar system.