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LIGO Reports Second Black-Hole Merger
The spokesperson for the Laser Interferometer Gravitational-Wave Observatory called it “a promising start to mapping the populations of black holes in our universe.”
The Downside to Neanderthal DNA
How interbreeding among early hominins harmed humans but may have slowed the Neanderthals’ decline.
A Glimpse Through a Cosmic Keyhole
What could cause galaxies millions of light years apart to all spew material in the same direction?
Have Physicists Discovered a New Boson?
A group of little-known Hungarian physicists claim to have found a new fundamental particle. Now other researchers are raising questions about the team’s past work.