It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial, ...

A massive explosion that was spotted in 2009 has been declared, by some at least, to be the most distant object ever seen. It’s ninety-six percent of the way to the visible limit of the universe. In ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

How can any telescope see a galaxy 33.8 billion light-years away in a universe that is only 13.8 billion years old? When you purchase through links on our site, we may earn an affiliate commission.

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

NASA's James Webb Space Telescope has helped astronomers determine the distance to nearly 200 galaxies and galaxy clusters formed in the universe's early days. One of the first publicly released ...

NASA’s James Webb Space Telescope has followed up on observations by the Hubble Space Telescope of the farthest star ever detected in the very distant universe, within the first billion years after ...

Physicists have been puzzling over conflicting observational results pertaining to the accelerating expansion rate of our Universe—a major discovery recognized by the 2011 Nobel Prize in Physics. New ...

Ryan Shannon receives funding from the Australian Research Council. Every day and night, hundreds of thousands of intense, brief flashes of radiation suddenly flicker on and then off all across the ...

New research suggests that dark energy isn't needed to explain the acceleration in the expansion of the universe — instead suggesting giant voids in space are creating an illusion. When you purchase ...