Such an exponential expansion may seem minor, but it is equivalent to a grape in the palm of your hand swelling to become ...

How did the universe come into being? There are a multitude of theories on this subject. In a Physical Review Letters paper, ...

From our small blue planet to the farthest reaches of the observable cosmos, this breathtaking journey explores the true ...

This article was originally featured on The Conversation. A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the American Astronomical ...

Sometime in their cosmic lives, two gigantic black holes crashed into one another to form something even more monstrous: A black hole equal to the size of 240 of Earth's sun. Now, thanks to an ...

Astronomers have revealed the largest known structure in the universe, which is made up of not only clusters of galaxies but also clusters of these clusters that form a gravitationally interacting ...

For two decades, scientists believed the cosmological constant, known as λ (lambda), was positive. That meant the Universe ...

Only a fraction of the size of the Milky Way, these galaxies have thus far been too faint for most telescopes to spot. Among the hundreds of billions of galaxies that stretch across the known universe ...

Ordinary matter – basically, anything other than dark matter – makes up about 15% of all matter. But half of it has long been missing. Powerful bursts of radio waves emanating from 69 locations in the ...

If you've ever wanted a better look at deep space, you now have your chance. A treasure trove of data collected by the James Webb Space Telescope is now available for public consumption. Included with ...

In this instance, two enormous black holes – 100 and 140 times the mass of Earth's sun – collided. The result? A black hole the size of a whopping 240 suns. Black holes this massive shouldn't be ...