Infant galaxies forming in the young universe more than 13bn years ago enraptured viewers when Nasa released the first image from the James Webb Space Telescope on Monday night.
The picture shows a galaxy cluster called SMACS 0723 as it appeared 4.6bn years ago — about the time when the Earth formed — acting as a gravitational lens and magnifying the far more distant and older galaxies that appear behind it.
Bill Nelson, Nasa administrator, revealed the image at a White House briefing with President Joe Biden and Vice-president Kamala Harris. He said the oldest galaxies in the picture might date back to within 300mn years of the birth of the universe 13.8bn years ago.
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