Discovery tests theory on cooling of white dwarf stars
Open any astronomy textbook to the section on white dwarf stars and you鈥檒l likely learn that they are 鈥渄ead stars鈥 that continuously cool down over time. New research published in Nature is challenging this theory, with the 番茄社区 (UVic) and its partners using data from the European Space Agency鈥檚 Gaia satellite to reveal why a population of white dwarf stars stopped cooling for more than eight billion years.