For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

A long-simmering disagreement over the universe’s present-day expansion rate shows no signs of resolution, leaving experts ...

Ever since the prominent astrophysicist Edwin Hubble discovered in the mid-20s that the universe is not static but is constantly expanding, and the ob ...

The beloved Hubble Space Telescope is reaching its 35th anniversary, and over the years it has taken some stunning images.

Edwin Powell Hubble is renowned for determining that there are other galaxies in the Universe beyond the Milky Way, and for observing that the universe is expanding at a constant rate. Hubble was ...

Despite decades of searching for this signal, astronomers have yet to find it. The problem is that our Earth is too noisy, making it nearly impossible to capture this whisper. The solution is to go to ...

The entire universe may be rotating, like its individual parts do, potentially explaining the “Hubble tension,” which perplexes scientists.

The Hubble constant is one of the most important numbers in cosmology because it tells us how fast the universe is expanding, which can be used to determine the age of the universe and its history. It ...

Just about everyone has heard of NASA’s Hubble Space Telescope — not too surprising considering that it has been with us for ...