Go ad-free with Premium

Topic: Planet Ltt9779b

An artist impression of exoplanet LTT9779b orbiting its host star. The planet is around the size of Neptune and reflects 80% of the light shone on it, making it the largest known “mirror” in the Universe. (ESA/Ricardo Ramírez Reyes/Universidad de Chile)

New planet is universe's largest mirror

Matthew Rozsa