Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

A physicist has proposed a bold experiment that could allow gravitational waves to be manipulated using laser light. By ...

A group of researchers have made a shocking discovery about one of the most fundamental forces in our universe. According to a new paper, which is set to publish in Physics of the Dark Universe next ...

Reviewers and technologists are raving about the realism of Gravity, the movie starring Sandra Bullock as an astronaut stranded in space, as well as George Clooney. One of the key technologies behind ...

Ninety-eight years after Albert Einstein began to transform physics, scientists continue to question his ideas. So far, he's survived every crucial challenge, including the latest: a challenge to his ...

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Why is light affected by gravity if photons are massless? originally appeared on Quora: the place to gain and share knowledge, empowering people to learn from others and better understand the world.