The universe's expansion means its size is bigger than its age suggests. The universe's expansion doesn't have a speed limit like objects within it. Distant galaxies move away from us as space itself ...

Dark-energy evidence suggests the universe will end in a “big crunch” roughly 20 billion years from now. The universe is nearing the halfway point of what may be a 33-billion-year lifespan, according ...

Given how unfathomably large the universe is, it is perhaps understandable that we haven’t yet cracked all its secrets. But there are actually some pretty basic features, ones we used to think we ...

Lead Astronomer at the James Webb Australian Data Centre, Swinburne University of Technology Deep observations from the James Webb Space Telescope (JWST) have revealed an exceptionally large galaxy in ...

Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Many textbooks and science educators have attempted to describe the ...

Some of the earliest galaxies found with JWST are also the brightest. That's a problem for our ideas about the universe. When you purchase through links on our site, we may earn an affiliate ...

Observations by the keen-eyed Webb Space Telescope have revealed a huge galaxy in the distant—which is to say early—universe. The galaxy is a vibrant orange disk, dubbed the Big Wheel. Its life began ...