It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

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

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

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

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

A surprisingly mature spiral galaxy from cosmic dawn is rewriting ideas about how fast the Universe built its first galaxies.

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

Most of the universe is made up of dark matter and dark energy. The majority of everything else is dispersed throughout space ...

The most distant known star in the universe is no longer a faint, anonymous point of light. With the James Webb Space ...

In fact, these jets often expand into wide plumes or “lobes” that fan out far above and below their host galaxies. The jets ...