The surface of Earth is finite. We can measure it. If it was expanding, then its size would grow with time. And once again, ...

A new study published in Monthly Notices of the Royal Astronomical Society suggests that the universe's expansion may be slowing down, contrary to the widely held belief that it is rapidly expanding.

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

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

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

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. Everything on Earth, in our solar system, our galaxy, and beyond is contained within ...

"It means cleaning house, narrowing the viable paths forward, and no longer spending energy on what are evidently dead ends." ...

Where is the center of the universe? Learn why researchers say the rules may not apply to the center of the universe.

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding? Astronomers have tried two main methods to figure it out, but their numbers don’t ...

This NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as the Squid Galaxy. CREDIT: ESA/Hubble & NASA, L. C. Ho, D. Thilker. Get the Popular Science daily ...