Last year, our most detailed map of the universe yet suggested our understanding of dark energy has been wrong for decades. The shock result is reigniting the search for a better cosmic story ...

Physicists are scrambling to understand why dark energy is weakening. In a surprising twist, we must now reconsider the ...

Converting wave motion into electricity holds enormous potential as a renewable energy source, but a lack of standardized prototyping is holding back technological development. A research team led by ...

Planetesimals are among the first solid bodies to form as dust and pebble-sized material clumps together under gravity. Much like snowflakes compressed into a snowball, they are loose aggregates ...

It’s a regrettable reality that there is never enough time to cover all the interesting scientific stories we come across ...

Potomac, Maryland, native Christopher Williams is one of the seven astronauts and cosmonauts currently aboard the ...

Your weight doesn't change because of gravity but because the floor pushes back. Physicists explain why elevators briefly ...

Scientists have pulled off a feat long considered out of reach: getting light to mimic the famous quantum Hall effect. In their experiment, photons drift sideways in perfectly defined, quantized steps ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

In 1974, physicist Stephen Hawking described the potential for tiny, primordial black holes that existed at the dawn of time to explode — and reshaped what we knew about these cosmic behemoths.