Relativity and Gravity
4 reportsQuestions about how gravity is tested experimentally are tested against worked examples and gravitational waves. A second focus is which observations confirm relativity, identifying which examples clarify the concept and which expose its limits.
Thermal Cameras Could Sharpen LIGO's View of Distant Black Holes
Researchers have demonstrated that commercial thermal imaging cameras, combined with computer modeling, can correct heat-induced distortions in LIGO's mirrors, potentially expanding the observatory's reach by tens of millions of light-years
Webb Telescope Uses Gravitational Lensing to Reveal Ancient Galaxies
The James Webb Space Telescope has captured a detailed image of the galaxy cluster MACS J0553.4-3342, using gravitational lensing to magnify galaxies from the universe's first billion years
Black Hole Thermodynamics Updated Beyond Hawking's Original Theory
Physicists have proposed a new framework for describing black hole energy loss, extending thermodynamic laws to dynamic black holes and addressing a key limitation in Stephen Hawking's classic model
Gravitational Wave Data Reveals Black Hole Event Horizon Properties
Researchers have extracted direct physical parameters from a black hole event horizon using an unusually strong gravitational wave signal, providing new experimental access to a region previously studied only through theory