General relativity stands as one of the bedrock theories in modern physics. Its strange view of relative time and space has been confirmed by countless experimental and observational tests, from ...

The MICROSCOPE mission tested the weak equivalence principle with free-falling objects in a satellite. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

A new physics paper proposes modifications to Einstein’s theory of relativity that could solve one of the biggest issues ...

In 2019, the MAGIC telescopes detected the first Gamma Ray Burst at very high energies. This was the most intense gamma-radiation ever obtained from such a cosmic object. But the GRB data have more to ...

Scientists could soon test Einstein's theory of general relativity by measuring the distortion of time. General relativity states that gravity is the result of mass warping the fabric of space and ...

The loudest black hole collision ever recorded has just given Einstein’s theory of general relativity its hardest test so far. The event, dubbed GW250114, produced a record-smashing signal-to-noise ...

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First proposed a century ago, Albert Einstein's theory of relativity got yet another boost this week, a new study suggests, thanks to giant telescopes that peered at a huge black hole at the heart of ...

A new experiment with momentum-entangled helium atoms could help unite quantum mechanics and general relativity.

Imagine being able to measure tiny changes in the flow of time caused by Earth’s gravity with atomic clocks atop one of Colorado’s iconic peaks above 14,000 feet. That could soon be a reality thanks ...