For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to be true. Space is stretching faster today than in the past, and the precise ...

Using the James Webb Space Telescope, a team of international researchers have discovered chemical fingerprints of gigantic ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

The Nancy Grace Roman Space Telescope has quietly crossed a threshold that turns a long‑planned mission into a near‑term ...

Dark matter is special in that it doesn't emit, absorb or interact with light, so science had to find a more creative way to ...

R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...

The idea that we might be living in a simulated reality has worried us for centuries. Now physicists have found some ...

The Atacama Cosmology Telescope in Chile not only confirmed one of the greatest mysteries in the universe—it also ruled out ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...

FROSTI is a new adaptive optics system that precisely corrects distortions in LIGO’s mirrors caused by extreme laser power.