What Is Dark Energy? Physicists Aren't Even Sure
May 05, 2020•15 min•Transcript available on Metacast Episode description
Dark energy makes up almost 70% of our universe and is believed to be the reason the universe is expanding. Yet very, very little is known about it. To figure out what we do know — and what it could tell us about the fate of the universe, we talked to astrophysicist Sarafina Nance. She studies cosmology, a field that looks at the origin and development of the universe.
