Gravity is a force we experience every day, yet it challenges our basic understanding of how the universe works. Why does everything seem to attract everything else? Why do objects fall, and why do ...

Scientists propose using quantum-entangled clocks to test how gravity affects quantum mechanics in curved spacetime.

Less than a decade since the first detection of gravitational waves—ripples in spacetime itself—proposed budget cuts threaten ...

Researchers from the University of Greifswald and the Max Planck Institute for Astronomy (MPIA) in Heidelberg (both in ...

For decades, physicists have faced one of science’s greatest puzzles: merging quantum mechanics, which describes tiny ...