Hubble Pinpoints Distant Supernovae
Depicts: SN 1997cj
Copyright: Peter Garnavich, Harvard-Smithsonian Center for Astrophysics, the High-z Supernova Search Team, and NASA
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These Hubble Space Telescope images pinpoint three distant
supernovae, which exploded and died billions of years ago.
Scientists are using these faraway light sources to estimate
if the universe was expanding at a faster rate long ago and
is now slowing down.
Last Update: 1 September 2019