How to Build a 3D Map of the Universe - and Why
Friday, December 6, 2019 - 17:30
in Astronomy & Space
In the 1980s, Saul Perlmutter at the Department of Energy's (DOE) Lawrence Berkeley National Laboratory (LBNL) and his collaborators realized that they could use data about supernovae to research the history of the universe. They expected to see that very distant supernovae appear a bit brighter than they would in an expanding universe that wasn't slowing in its growth. The data revealed something else entirely.