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Opinions differ about what recent measurements of a sound-trapping fluid reveal about light-trapping black holes.
Astronomers have discovered a complex planetary system still swirling into existence.
New experimental results simultaneously advance and challenge the theory that the brain’s network of neurons balances on the knife-edge between two phases.
Immunologists confirm an old hunch: T-cells identify what belongs in the body by timing how long they can bind to it.
Astronomers are puzzling over a paucity of planets in the galaxy measuring between 1.5 and two times Earth’s size.
Skyrocketing animal diversity a half-billion years ago was linked to spikes and dips in marine oxygen levels, according to a detailed geological study.