did dark energy just disappear? | space time | pbs digital studios Published 8 years ago • 1.7M plays • Length 15:50 Download video MP4 Download video MP3 Similar videos 14:48 anti-gravity and the true nature of dark energy | space time | pbs digital studios 15:19 can black holes unify general relativity & quantum mechanics? 16:19 what if dark energy is a new quantum field? 16:57 did ai prove our proton model wrong? 12:39 what does dark energy really do?