At just 25, Cecilia Payne-Gaposchkin applied quantum physics to a treasure trove of astronomical observations to show that stars are mostly hydrogen and helium.
Like Uranus's other 28 moons, the newfound object spotted by JWST will be named after a William Shakespeare or Alexander Pope character.
Sporting the world’s largest digital camera, the new telescope is poised to help solve some of the universe’s biggest mysteries.
Before exploding, a star shed most of its layers, giving a glimpse at a massive star’s deep interior. The event may represent a new kind of supernova.
The Webb telescope found that a far-off little red dot is the oldest known black hole, shrouded by gas that could help explain the ruby color.
Alpha Centauri A, four light-years from Earth, may host a gas giant. If confirmed, no Earthlike planets orbit in the star’s habitable zone.
The superclouds probably produce star-forming clouds of gas, since most nearby stellar nurseries are located within the giants.
These star-shredding black holes sit within dusty galaxies that block many telescopes’ views. That’s not an issue for JWST.
An infinity symbol–shaped galaxy hosts an active supermassive black hole. The growing giant may have come from the aftermath of a galactic smashup.
Revealed by advanced imaging, the long-sought "Betelbuddy" is much smaller and fainter than Betelgeuse and orbits within the supergiant’s atmosphere.
