Scientists once thought the early universe didn't make them.

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

For more than a decade, cosmology has been stuck with a puzzling contradiction. Two ...

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

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

Astronomers have long been concerned about reflections from satellites showing up in images taken by telescopes and other ...

There is a way out of this trap, but it requires a fundamental shift in how NASA thinks about astrophysics procurement. It is time to stop buying hardware and start subscribing to outcomes. It is time ...

The B.S. in astronomy & astrophysics at UW offers students an adventurous course of study in astronomical objects—from stars to black holes to solar systems—and their properties and functions. The ...

Astronomers have captured images of two stellar explosions—known as novae—within days of their eruption and in unprecedented ...

Any project, supported or not by a committee, that is currently being worked on or is considered active, and will have an end date. The Committee on Astronomy and Astrophysics (CAA) provides an ...