Hubble Pinpoints Distant Supernovae
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. Images of SN 1997cj...
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- NASA Science (.gov) Official / wire · science.nasa.govAlso carried by science.nasa.gov