Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

Andy Saunders, author of "Gemini and Mercury Remastered," talked about his process of remastering the most famous photographs of NASA's space program.

SpaceX is planning a weekend rocket launch from Southern California 3 days after the commercial spaceflight company's last ...

After decades of searching, astronomers may have finally stumbled upon the first moon known to exist beyond our solar ...

In 1995, "Toy Story" introduced one of sci-fi's greatest heroes. Thirty years on, Buzz Lightyear is still the pride of Star Command ...

These images mark an early milestone in the mission, confirming that OSIRIS-APEX is healthy and on course for its 2029 ...

Astronomer Jocelyn Bell Burnell detected a strange signal from outer space that would lead to the discovery of the radio ...

The James Webb Space Telescope (JWST) is allowing astronomers to examine distant galaxies in the far reaches of the early universe for the first time. Some of these have chemical signatures that seem ...

The first generations of stars formed under conditions very different from any we can see in the nearby universe today. Astronomers are studying these differences using powerful telescopes that can ...

Galaxy Y1 shines thanks to dust grains heated by newly-formed stars (circled in this image from the James Webb telescope). Astronomers have uncovered a previously unknown, extreme kind of star factory ...

Astronomers have discovered phosphine gas in the atmosphere of an ancient brown dwarf, Wolf 1130C, using the James Webb Space Telescope. The finding is puzzling because phosphine, a potential ...

Astronomers have spotted the largest and most distant flare ever observed from a supermassive black hole. Nicknamed “Superman,” the flare originated 10 billion light-years from Earth, and at its peak, ...