NASA has finished building the Nancy Grace Roman Space Telescope, completing assembly of the agency’s next flagship ...

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 ...

Two new awards totaling $4.8 million will fund next-generation instruments for mid-sized telescopes at Lick and McDonald Observatories, enabling researchers to study how planets and stars form. The ...

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

In the leading model of cosmology, most of the universe is invisible: a combined 95% is made of dark matter and dark energy.

The Gruber Foundation today recognized four scientists who have made significant contributions to the fields of cosmology, genetics, and neuroscience. Recipients of the Gruber International Prize ...

Findings from a new study into the cosmic "afterglow" may rewrite the history of the universe, according to researchers. This afterglow—the "cosmic microwave background" (CMB), the relic radiation ...

At a beachfront convention center in Cancún, Mexico, last December, Seshadri Nadathur presented a confidential growth chart of the universe. Seated in the audience, hundreds of his fellow scientists ...

The clearest pictures yet of the newborn cosmos strengthen the prevailing model of the universe but deepen a mystery about its expansion rate. Measurements of this rate, known as the Hubble constant, ...

New research by the Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe’s infancy — the earliest cosmic time yet accessible to humans. The researchers ...