The fast-moving gas cloud could help explain the so-called missing satellite problem, if the object is what scientists think it is.
The Webb Space Telescope captured a chance alignment of a protostellar outflow and a spiral galaxy in a dazzling example of the cosmos' weirdness.
Astronomers using the Webb Space Telescope spotted the gigantic—and growing—primordial galaxy.
The mission’s first large set of survey data is a treasure trove for clues about the history of the universe.
A new study lends credence to the radical idea that our universe sits within a black hole.
The fully formed galaxy is remarkably teeny, raising new questions about how galaxies emerge and evolve.
NASA's flagship space telescope captured flares from the disk of superheated material around the black hole, revealing the dynamic—and explosive—physics at our galaxy's core.
New data reveals a 3-million-light-year filament connecting two galaxies, each of which hosts a supermassive black hole.
A galaxy in the distant universe has nine rings around it, and thanks to Hubble scientists now know why.
The energy flare came from an old galaxy, upending prevailing theories about the source of fast radio bursts.
The circumgalactic medium, a vast gaseous halo surrounding galaxies, could be crucial to the evolution of star-forming galaxies like our own.
A year of discovery awaits, with missions poised to reveal new insights about our home planet, solar system, galaxy, and beyond.
New images from Webb Space Telescope reveal massive, ancient spiral galaxies.
A new image by the Chandra X-ray Observatory reveals an unidentified celestial object, dubbed C4, getting blasted by a jet of energetic particles, raising questions about its identity.
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