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James Webb Space Telescope Discovers the Earliest Galaxy Ever Seen
The James Webb Space Telescope has discovered the most distant galaxy ever observed, named MoM z14. NASA estimates it existed just 280 million years after the Big Bang. Space.com reports: Prior to the discovery of MoM z14, the galaxy holding the title of earliest and distant was JADES-GS-z14-0, whi...
There is a wider context to the observation of MoM z14 than the fact that it has broken the record for earliest known galaxy by 20 million years, though, as [explained team member and Yale University professor of Astronomy and Physics Pieter van Dokkum]. "The emission lines are unusual; it indicates that the galaxy is very young, with a rapidly increasing rate of forming new stars," van Dokkum said. Later galaxies would be populated by these heavier elements, which astronomers somewhat confusingly call "metal," as their stars forged them and then dispersed them in supernova explosions.
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