Firefly Sparkle,” a galaxy that existed about 600 million years after the big bang, has been imaged by the James Webb Space ...

Travel 500 million light-years into the James Webb Space Telescope's amazing view of the Cartwheel Galaxy. Credit: ESA/Webb, ...

The galaxy MoM-z14 dates back to 280 million years after the big bang, and the prevalence of such early galaxies is puzzling ...

As the Hubble Space Telescope celebrates 35 years in space, here's what to know about the ambitious instrument.

But when scientists peer very far back, they find conundrums. JWST observations of the distant past are at odds with ...

On what might have been the proudest day of Jack Burns’s long career in astronomy, he was sitting on a beach. Orbital ...

A binary system 18,000 light-years away, emits X-rays as a Sun-like star orbits a dense companion, either a neutron star or black hole. Telescopes like Chandra, IXPE, and XMM-Newton capture its ...