Two new studies have measured the expansion of the universe in our immediate cosmic neighborhood using a novel method that ...

The Committee on Astronomy and Astrophysics (CAA) provides an independent, authoritative forum for identifying and discussing issues in astronomy and astrophysics with the research community, the ...

Milky Way billions of years ago. This remarkable journey, revealed through the most detailed catalog of similar stars to date ...

Astronomers have uncovered a hidden cosmic web of galaxies and gas by mapping hydrogen light from the early universe.

PASADENA, Calif.--The California Institute of Technology (Caltech) scientists who study the outer reaches of space are about to get some space of their own with the official opening of the Cahill ...

Thinking about space is very exciting! Two big words often come up: Astrophysics and Astronomy. Many wonder which one is "better." The truth is, both are interesting and important, but they look at ...

With some regularity, I get asked the difference between astronomy and astrophysics. I suppose I’m a good person to ask: Of my three degrees, two of them are in “astronomy and astrophysics”. But what ...

Researchers have uncovered evidence for our sun joining a mass migration of similar "twins" leaving the core regions of our galaxy, 4 to 6 billion years ago. The team created and studied an ...

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 ...