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 ...

The question of whether the cosmos goes on forever is no longer just a late night thought experiment, it is a live research ...

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

The most fundamental step in understanding the universe is determining the distances to celestial objects. A primary method for measuring distances to other galaxies involves using 'standard ...

A group of researchers has released a new map that brings science closer to an accurate estimation of the true size and age of the universe. The new research was published in The Astrophysical Journal ...

Physicists have improved the accuracy of a technique that uses variable stars to measure distances in the universe, providing a new figure for its expansion rate. When you purchase through links on ...

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be straightforward. Objects are still emitting light, and that light takes time to travel ...

Astronomers have found the largest known structure in the universe. It is 1.4 billion light years across and contains nearly 70 galactic superclusters. It is also hundreds of thousands of times more ...

Space. It's really, really big. How big is it? Well, according to astronomers, the observable universe is around 92 billion light-years in diameter, but that's all we can see (hence the word ...

New observations from the James Webb Space Telescope suggest that a new feature in the universe—not a flaw in telescope measurements—may be behind the decadelong mystery of why the universe is ...

Astronomers have used all sorts of tricks over the years to try to convey the mind-boggling scale of the universe to us ordinary folks. If you could drive your car from here to the nearest star at 60 ...

It is widely thought that our universe is expanding at an ever-accelerating rate. But could we have that wrong? That is what a group of scientists from South Korea claims, but other scientists have ...