Galaxies use powerful winds to save themselves from early deaths. And researchers just spotted one from just a billion years after the Big Bang.
Stars are giant, luminous spheres of plasma. Galaxies consist of stars, stellar remnants, dust, gas, and dark matter, bound together by gravity. Learn more about stars and galaxies.
Meteorites may hold new clues about the supernova explosions from which the stars and planets of our solar system formed, new research shows.
Close encounters with medium-size black holes can reanimate dead stars, if only momentarily, a new study suggests.
Our sun shapes every day of our lives and always has — and if there's life on alien worlds, the same will be equally true of their stars.
The first-ever observations of merging binary stars stunned the astronomy community last year, but not quite as much as the first-ever signal from extraterrestrial life might someday stun the world.
The Spitzer Space Telescope launched into orbit around the sun on Aug. 25, 2003, kicking off a long and diverse mission that has produced groundbreaking finds in a number of different fields.
Signals from a rapidly rotating, ultradense star have been transformed into beautiful melodies, revealing the "SOS" sounds of the star's dwindling companion.
Scientists have found hundreds of galaxies hiding in plain sight, hidden by the light emitted by an extremely active supermassive black hole.
Astronomers spotted a huge black hole in the center of a very small galaxy, which could help scientists better understand how these kinds of galaxies — called "ultracompact dwarfs" — form.
The Hubble Space Telescope has been at work for almost three decades, but it's still learning new skills — like how to squeeze an incredible 15,000 galaxies into a single image.
A curious collection of galaxies sparkles like jewels in a gorgeous new image taken by a powerful, Earth-based telescope.
NASA is just a week away from launching its next science mission, a spacecraft called the Parker Solar Probe that is currently scheduled to launch early in the morning on Aug. 11.
An incredible time-lapse video from the European Southern Observatory's Very Large Telescope (VLT) captures a daring star as it whips around the monster black hole at the center of the Milky Way.
A distant galaxy boasts a gaseous halo that may shed light on how some of the first galaxies in the universe evolved, new research shows.
Our Milky Way had a pretty sizable sibling long ago — until neighboring Andromeda tore the unfortunate galaxy apart, a new study suggests.