The true nature of dark matter is still one of the greatest mysteries in contemporary physics, even though scientists have ...

Beyond this protective layer lies space ... suggesting a finite yet unbounded structure. The observable universe—the part of space we can study—is limited by the speed of light and the ...

Looking halfway across the observable universe and expecting to see individual stars is considered a non-starter in astronomy, a bit like raising a pair of binoculars at the moon in hopes of ...

The observable universe is a ball-shaped region of the universe comprising ... No signal can travel faster than light, hence there is a maximum distance (called the particle horizon) beyond which ...

While parallel universes are a staple of science fiction, there are some real scientific theories to support them. But if parallel universes do exist, could we ever travel to them? It certainly wouldn ...

What is beyond planet, star ... This is just a small part of the universe—less than 1% of the entire observable universe—but it is our galactic neighborhood. And it is good to know the ...