Just a week after its first images were shown to the world, the James Webb Space Telescope may have found a galaxy that existed 13.5 billion years ago, a scientist who analyzed the data said Wednesday.
Though GLASS-z13 existed in the earliest era of the Universe, its exact age remains unknown as it could have formed any time within the first 300 million years.
Naidu said another team of astronomers led by Marco Castellano that worked on the same data has achieved similar conclusions,"so that gives us confidence".One of the great promises of Webb is its ability to find the earliest galaxies that formed after the Big Bang, 13.8 billion years ago. By using data collected through different infrared filters pointed at the same region of space, they were able to detect where these drop-offs in photons occurred, from which they inferred the presence of these most distant galaxies.
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