A distant galaxy is puzzling astronomers. JADES-GS-z13-1, observed shortly after the Big Bang, emits light that shouldn't be visible. This discovery, made possible by the James Webb Space Telescope, ...

ACT COLLABORATION; ESA/PLANCK COLLABORATION It’s hard to picture the universe in its infancy. The middle-aged cosmos now stretches across 93 billion light-years, holding up to two trillion ...

The galaxy is 13.4 billion light-years away, meaning it formed in the early days of the universe. Astronomers believe the big bang created the universe 13.8 billion years ago. The unusually large ...

Their updated results, taken with other measurements — exploding stars, leftover light from the young universe and distortions in galaxy shape — support the idea presented last year that dark ...