For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

The universe has no center, expanding in all directions simultaneously, challenging human perception of space and time.

So asking, " Where's the center of the universe? " is somewhat like asking, "Where's the center of the balloon's surface?” ...

Astrophysicists have discovered the largest known merger of two black holes to form a larger single hole about 225 times the ...

In our universe, there is no such “interior ” to anchor a center. Just as there is no center on the surface of a balloon, there is no central point in the universe.

So in asking about the center of the universe, we're confronting the limits of our intuition. The answer we find—everything, expanding everywhere, all at once—is a glimpse of just how strange ...

As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s not how it works. Hint: space-time is involved.