Juice bars. Wine bars. Coffee bars. And now ... oxygen bars? Yep, popping up all over the U.S. (as well as in Canada and Japan, where the craze is thought to have begun because of the serious air ...

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

Astronomers have found oxygen in the farthest, and thus the earliest, galaxy ever seen. This marks the most distant detection of oxygen ever made by humanity. This early galaxy, designated JADES ...

Astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. This record-breaking detection is making astronomers rethink how quickly galaxies formed in the early Universe.