Researchers have developed a new quantum theory of gravity which describes gravity in a way that's compatible with the Standard Model of particle physics, opening the door to an improved understanding ...

On May 29, 1919, a total solar eclipse helped to prove Albert Einstein's theory of general relativity. [‘On This Day in Space’ Video Series on Space.com] Einstein's theory suggested that gravity could ...

Physicists may have uncovered a surprising new clue that string theory—the idea that the universe is built from unimaginably tiny vibrating strings—could be more than just a mathematical fantasy.

If you could take an apple and break it into smaller and smaller parts, you would find molecules, then atoms, followed by subatomic particles like protons and the quarks and gluons that make them up.

Big G, gravity, is the oldest fundamental constant in physics and the least clearly defined. One scientist has spent a decade attempting to crack the mystery.

Our understanding of the electromagnetic spectrum goes back to Isaac Newton, but astronomers are still finding new ways to ...

Too much screen use among kids and teens – including endless social media scrolling, nonstop texting and hours of video games – can be harmful, and it has become a public health concern in the United ...

There is a new warning about screen time coming from the surgeon general’s office, raising the alarm on the amount of time kids spend on screens, the potential harms of screen use, problematic content ...

The U.S. surgeon general’s office wants you to crack down on screen time for your kids, according to a newly published advisory. Released May 20, even as President Donald Trump's nominee for surgeon ...

The Most Successful Historic Immigrants list showcases those naturalized citizens who have made their mark on American ...