In the past, people thought the Earth was the center of the universe and everything revolved around it. This was a fairly ...

According to a tenet scientists call the cosmological principle, our place in space is in no way exceptional. But recent ...

But try to point to the center of Earth's surface, like on a map. It could be at 0-0 latitude and longitude; it could be at the poles; it could be at your grandma's house. Any point is just as ...

Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

In the stunning new book Universe: Exploring the Astronomical ... Each of the 50,000 dots represents an entire galaxy. The Earth, once believed to sit at the center of it all, is in truth a ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

Taking advantage of a cosmic "double lens," astronomers resolved more than 40 individual stars in a galaxy so far away its light dates back to when the universe was only half its present age.

The universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous—and highly ...