"If as we believe, quantum gravity does indeed exist, this will contribute to unite the current two worlds in physics."

Researchers sent experiments to the International Space Station in order to learn more about bone density loss in space and back on Earth.

New research may alter the way scientists attempt to uncover the history of Earth as an evolving planet.

The gravitational constant G determines the strength of gravity, but the value is hard to nail down. Now, researchers have remeasured it using lasers.

"What is on the event horizon for a black hole? Where does it come from? Answering these questions would be a step towards realizing a quantum theory of gravity."

Force generated by the pull of the sun on the moon, rather than heat, may be responsible for the movement of the Earth's tectonic plates, researchers argue.

New research uses computer simulations rather than contraptions to see how individual cardiovascular systems will respond to altered gravity.

The way "micro-swimmers" mimic rock climbers navigate could shed light on how bacteria move in the body and could lead to new ways to deliver drugs.

Researchers say Einstein's ideas hold up in a new kind of test. "This is a brand new way to test general relativity using supermassive black holes."

A new study suggests a new approach to the search for the graviton: investigating gravity at the quantum level.