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 ...

At that speed, it would take Voyager 1 about 500 million years to reach the center of the Milky Way. Based on those numbers, the likelihood of human beings ever engaging in interstellar travel is ...

Add Yahoo as a preferred source to see more of our stories on Google. In space, there are four dimensions: length, width, height and time. scaliger/iStock/NASA via Getty Images Plus About a century ...

The most precise measurement of the expansion rate ever made suggests an unknown force may be affecting the universe.

How did everything begin? It’s a question that humans have pondered for thousands of years. Over the last century or so, science has homed in on an answer: the Big Bang. This describes how the ...

A new JCAP study tests an “emulator” to reconstruct the large-scale structure of the cosmos If you think a galaxy is big, compare it to the size of the Universe: it’s just a tiny dot which, together ...

The Big Bang is often described as the explosive birth of the universe – a singular moment when space, time and matter sprang into existence. But what if this was not the beginning at all? What if our ...

What a great question! In fact, this is one of those questions humans will continue to ask until the end of time. That’s because we don’t actually know for sure. But we can try and imagine what the ...