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 ...

An LED light that runs on rope pulls and gravity has been developed, which could be good news for developing countries without access to stable lighting. GravityLight, a crowdfunding campaign and ...

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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 ...

When two black holes merge or two neutron stars collide, gravitational waves can be generated. They spread at the speed of ...

DeciWatt.org just raised $308,000 on IndieGoGo with its unbelievably resourceful Gravity Light invention. There are 14 days left in the crowdfunding campaign. The goal of this new product is to ...

On the simplest level, GravityLight converts gravitational energy into light, just like its name promises. That's right, you lift a bag filled with 20 pounds of stuff (sand, earth, whatever) and ...

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.

Scientists have succeeded in measuring the speed of gravity for the first time. Sergei Kopeiken of the University of Missouri-Columbia and Ed Fomalont of the National Radio Astronomy Observatory in ...

The speed of gravity is the same as that of light, say two physicists. Knowing the speed of gravity is important for theories that attempt to unify the two pillars of physics: general relativity and ...