Image: When a large nearby object, such as a galaxy, blocks a distant object, such as another galaxy, the light can detour around the blockage. But instead of taking a single path, light can bend ...

Learn how Hubble is measuring the expansion rate of the Universe in this new explainer from NASA's Goddard Space Flight ...

For the past decade, scientists have been trying to get to the bottom of what seemed like a major inconsistency in the universe. The universe expands over time, but how fast it’s expanding seemed to ...

Trying to measure the size of the universe is no easy task. We know that the universe is expanding, though the exact rate of this expansion is not yet fixed. So one method that astronomers use to tell ...

Researchers from the Baryon Oscillation Spectroscopic Survey (BOSS) today announced that they have measured the distance to galaxies more than six billion light years away to an unprecedented accuracy ...

A black hole is usually where information goes to disappear—but scientists may have found a trick to use its last moments to tell us about the history of the universe. In a new study, two University ...

The history of the Universe, as far back as we can see using a variety of tools and telescopes, out to the maximum present depth of SDSS. We are now up to SDSS-16, which can go all the way back to ...

We know the Universe is big. But just how big is it really? And how could we ever measure something as ephemeral as the cosmos? This new video by the ever-popular Minute Physics takes a stab at these ...

Kochanek, Stanek, Prieto / Ohio State U. The galaxy M81, seen here in an image from the Large Binocular Telescope, is home to several ultra-long-period Cepheid variable stars that could help ...

Image: When a large nearby object, such as a galaxy, blocks a distant object, such as another galaxy, the light can detour around the blockage. But instead of taking a single path, light can bend ...

Menlo Park, CA - Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on a par ...