The U.S. Environmental Protection Agency has just proposed rescinding a critically important finding under the Clean Air Act that, according to The Baltimore Sun, “determined that carbon dioxide and ...

From Newton’s apple to Einstein’s spacetime, gravity has been tested on scales from sub-millimeter experiments to galaxy clusters millions of light-years apart. Recent studies confirm its laws hold ...

This wasn't some sudden lightning bolt of inspiration. Newton spent years developing his ideas about gravity, working through mathematical proofs and observations. The apple was merely the beginning ...

When Newton first proposed the law of universal gravitation, it marked the very first time that we realized the same rule governing how objects fell on Earth also governed how they moved and attracted ...

A spallation neutron source has been used by physicists in Japan to search for possible violations of the inverse square law of gravity. By scattering neutrons off noble-gas nuclei, the researchers ...