Astronomers utilizing the Large Binocular Telescope have found two uncommon scorching subdwarf stars: PG 1654+322 and PG 1528+025. While regular stars have surfaces composed of hydrogen and helium, these two subdwarfs are coated with helium-burning ash and could be recognized because the remnants of a helium-core white dwarf that accreted matter of a low-mass carbon-oxygen […]
