Science·phys.org↗·1moAn ultramassive white dwarf half Earth's size may hold a rare oxygen-neon core#Science#phys.orgSourceRead the original at phys.org0SaveShare📚Add to CollectionNext postPSB iQ2 review: Premium sound meets smart-speaker convenience - EngadgetRelated postsThe space race should not endanger Australian wildlifephys.orgHungary detects invasive spotted lanternfly for the first time in the EUphys.orgResearchers build microscopic DNA 'sails' to pull molecules apartphys.org