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After a burst lit up their telescope “like a Christmas tree,” astronomers were able to finally track down the source of these cosmic oddities.
Physicists have proposed extra cosmic ingredients that could explain the faster-than-expected expansion of space.
A recent neutron star merger has defied astronomers’ expectations, leading them to question longstanding ideas about neutron stars and the supernovas that create them. “We have to go back to the drawing board.”
By watching for a special kind of flare, astronomers have identified the fingerprints of an Earth-size planet orbiting a distant star.