Researchers have unveiled a new model for the universe’s birth that replaces cosmic inflation with gravitational waves as the ...

The story begins with the black hole information paradox. According to relativity, anything that falls into a black hole is ...

Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...

To answer Robertson: The Higgs field doesn’t appear to have more valleys to explore, according to our current understanding.

The gravitational lensing that causes this rare phenomenon cannot be explained solely by looking at observable ...

The universe rarely fails to amaze. One of its latest surprises—nicknamed the “Einstein zig-zag”—reveals a stunning arrangement of galaxies and a distant quasar. Together, they produce a gravitational ...

The faster you move, the stranger time becomes. By imagining how light travels to two people moving at different speeds, Einstein showed that time isn’t absolute. His thought experiment revealed that ...

To understand gravity, Einstein had to rethink space and time as a single connected fabric. He showed that mass bends this fabric, guiding how everything moves. NOVA is available to stream on pbs.org ...

Researchers suggest gravitational waves, not cosmic inflation, may have driven the universe’s formation. This model links ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the bending of space and time. Quantum mechanics governs the world of particles ...