In the mid-19th century, Bernhard Riemann conceived of a new way to think about mathematical spaces, providing the foundation ...

Physicists have experimentally reversed electromagnetic waves in time, confirming a theoretical prediction that has stood for decades. The process, known as time reflection, causes a wave to retrace ...

Black holes have long captured the imagination of both scientists and the general public. These exotic objects—once thought ...

Scientists have discovered a giant cosmic filament where galaxies spin in sync with the structure that holds them together.

Euclid launched in 2023 on a six-year mission to map the cosmos at scale, observing billions of galaxies stretching as far ...