Exoplanet "like a mirror" due to metallic clouds

LTT9779b, 280 light years from Earth, is a scorching Neptune-sized world whose metallic clouds cause it to shine like a mirror in space. Its albedo is as high as that of Venus despite being a very different world.

Like running hot water steams up a bathroom, a scorching stream of metal and silicate — the mineral of which glass is made — oversaturated LTT9779b's atmosphere until metallic clouds formed, he said.