New images from the James Webb Space Telescope (JWST) have helped Australian astronomers unlock secrets of how infant galaxies started an explosion of star formation in the very early universe.
Some early galaxies were abundant with a gas that glowed so bright it outshone emerging stars. In research published today, astronomers have now discovered just how prevalent these bright galaxies were some 12 billion years ago.
Images from the JWST have shown that almost 90% of the galaxies in the early universe had this glowing gas, producing so-called “extreme emission line features.”
“The stars in these young galaxies were remarkable, producing just the right amount of radiation to excite the surrounding gas...
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