Physicists predict the universe’s expansion will reverse, ending in a dramatic big crunch about 20 billion years from now.

Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

Most cosmologists believe that these stars were the first large, free-floating structures to illuminate our universe, and ...

Gravitational-wave detection technology is poised to make a big leap forward thanks to an instrumentation advance led by physicist Jonathan Richardson of the University of California, Riverside. A ...

Join the celebration of International Astronomy Day by looking up at the spectacular southern night sky, engaging in exciting ...