The skies over Philly are about to get a new star as a result of a cosmic cataclysm
Someday it may undergo an ultimate detonation as a "Type 1a supernova," which would be about 100,000 times as bright as our ...
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Cosmic voids may explain the universe's acceleration without dark energy
Because type 1a supernovae produce consistent peak brightness, measuring their brightness when observed from Earth can reveal how far away they are. "Type Ia supernovae are extremely valuable in ...