JWST finds a Milky Way twin born shockingly early in the Universe

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier than astronomers believed such well-structured galaxies could form. With sweeping spiral arms, rapid star formation, and an orderly disk resembling our Milky Way, it defies long-held theories about how slowly galaxies should assemble. Thanks to JWST and gravitational lensing, researchers could examine the galaxy in remarkable detail, revealing that the early Universe was far more capable and dynamic than expected.

Updates Dec 3, 2025 0 26 Add to Reading List

JWST finds a Milky Way twin born shockingly early in the Universe

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A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier than astronomers believed such well-structured galaxies could form. With sweeping spiral arms, rapid star formation, and an orderly disk resembling our Milky Way, it defies long-held theories about how slowly galaxies should assemble. Thanks to JWST and gravitational lensing, researchers could examine the galaxy in remarkable detail, revealing that the early Universe was far more capable and dynamic than expected.

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