Particular stars called Cepheid variables allow astronomers to determine distance, and Hubble spotted one of these within M31.

A hundred years ago, astronomer Edwin Hubble revealed a universe of galaxies that existed beyond ours. His influence in astronomy continues to this day.

Astrophysicists suggest our galaxy may lie inside a "cosmic void" - offering a new explanation for the universe’s conflicting ...

However, although photons of light existed since the first second after the Big Bang, they could not yet shine across the ...

This important discovery—known as Hubble’s law—supported the Big Bang theory of an expanding universe. In 1949, Hubble launched a project at California’s Palomar Observatory to complete the first ...

What we saw in the DESI experiments, and now strengthened by our South Pole Telescope observations, is that dark energy is ...

Astronomers suggest Earth may sit in a giant cosmic void. This could explain the faster local universe expansion, known as 'Hubble tension.' ...

Planetariums were a hit with the public. Within decades, they had spread around the world – the first planetarium in the ...

Students and faculty at BYU’s Department of Physics and Astronomy understand the value of the stars, and they dedicate their ...