The universe's vastness challenges human comprehension. It contains trillions of galaxies and countless stars. Pluto's ...

In other words, there are no regions of the universe that have more matter than others. This idea allows scientists to accurately estimate the number of stars and galaxies in the observable ...

Even if we narrow down the definition to the "observable" universe — what we can see — estimating the number of stars within it requires knowing just how big the universe is. The first ...

We see at most 3% of the universe,” said Pamela Gay of the Planetary Science Institute, citing a mind-boggling constraint ...

As the universe expands, that changes. The distance between us and all other stars increases, and our observable universe will shrink, giving us less to observe and play with as time drags on.

Visualization of the observable universe, using data from the Sloan ... and where dark matter might be located to the properties of stars in the Milky Way. Data from the survey covering a ...

When Galileo Galilei pointed his first telescope to the heavens in 1610, he discovered “congeries of innumerable stars” hidden ... have shown the observable universe spans an incomprehensible ...

By mapping the brightest explosions in the universe, scientists may have uncovered a megastructure that defies our understanding of how the cosmos is built.

Astronomers setting their sights halfway across the observable universe recently identified the largest amount of individual stars ever detected so far away – a feat once considered near-impossible.

The map depicts 200,000 tiny dots that each represent an entire galaxy, containing billions of stars, planets and ... we reach the edge of the observable universe. This splotchy pattern is an ...