The James Webb Space Telescope spotted six gigantic galaxies, each roughly the size of our own Milky Way, that formed at a bafflingly fast pace — taking shape just 500 million years after the Big Bang.
The James Webb Space Telescope has discovered a group of galaxies from the dawn of the universe that are so massive they shouldn't exist.
Scientists don't know exactly when the first clumps of stars began to merge into the beginnings of galaxies, but cosmologists previously estimated that the process began slowly taking shape a few hundred million years after the Big Bang. Currently accepted theories suggest that 1 to 2 billion years into the universe's life, these early protogalaxies reached adolescence — forming into dwarf galaxies that began devouring each other to grow into ones like our own.
"The Milky Way forms about one to two new stars every year," Nelson said."Some of these galaxies would have to be forming hundreds of new stars a year for the entire history of the universe. If even one of these galaxies is real, it will push against the limits of our understanding of cosmology." RELATED STORIES—The James Webb Telescope detected the coldest ice in the known universe — and it contains the building blocks of life—James Webb Space Telescope hit by large micrometeoroid
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The James Webb Space Telescope discovers enormous distant galaxies that should not existGiant, mature galaxies seem to have filled the universe shortly after the Big Bang, and astronomers are puzzled.
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“Massive” Webb Space Telescope Discovery Defies Prior Understanding of the UniverseSix massive galaxies discovered in the early universe are upending what scientists previously understood about the origins of galaxies in the universe. “These objects are way more massive than anyone expected,” said Joel Leja, assistant professor of astronomy and astrophysics at Penn State, who
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Galaxies spotted by Webb telescope rewrite understanding of early universeObservations by NASA's James Webb Space Telescope are upending the understanding of the early universe, indicating the presence of large and mature but remarkably compact galaxies teeming with stars far sooner than scientists had considered possible.
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James Webb peered deep into the hearts of nearby spiral galaxiesJames Webb is currently fueling research into some of the smallest processes of our universe, including star formation.
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Jupiter's Largest Moons All Have Aurorae That Glow Deep Red And 15x Brighter Than OursJupiter is well known for its spectacular aurorae, thanks in no small part to the Juno orbiter and recent images taken by the James Webb Space Telescope (JWST).
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The Hubble Space Telescope spots three galaxies about to collideThe three galaxies in the constellation Boötes are on a collision course and will eventually merge into a single huge bright galaxy.
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