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Joe Polchinski’s Restless Pursuit of Quantum Gravity
The pot-stirring string theorist and quantum gravity theorist never sits still for long.
Strange Noise in Gravitational-Wave Data Sparks Debate
The team that discovered gravitational waves put their data online. Now an independent group of researchers claims that they’ve found what might be a serious problem.
Where Gravity Is Weak and Naked Singularities Are Verboten
Recent calculations tie together two conjectures about gravity, potentially revealing new truths about its elusive quantum nature.
Discoveries Fuel Fight Over Universe’s First Light
A series of observations at the very edge of the universe has reignited a debate over what lifted the primordial cosmic fog.