Newly discovered “standard sirens” provide an independent, clean way to measure how fast the universe is expanding.
Physicists theorize that a new “traversable” kind of wormhole could resolve a baffling paradox and rescue information that falls into black holes.
A new idea is helping to explain the puzzling success of today’s artificial-intelligence algorithms — and might also explain how human brains learn.
Jason Morgan developed the theory of plate tectonics in 1967 while working among a critical mass of talented geophysicists at Princeton University.
The pot-stirring string theorist and quantum gravity theorist never sits still for long.
The first major results from the Dark Energy Survey signal the start of a new era of cosmology.