PhysicsBlack hole entropy hints at a surprising truth about our universe Two clashing ideas about disorder inside black holes now point to the same strange conclusions, and it could reshape the foundations of how we think about space and time Features
SpaceDo black holes exist and, if not, what have we really been looking at? Black holes are so strange that physicists have long wondered if they are quite what they seem. Now we are set to find out if they are instead gravastars, fuzzballs or something else entirely Features