This gas led to the formation of stars and expansion of galaxies in the early Universe , according to new research that has provided direct evidence of neutral gas inside distant galaxies. Scientists have long known that stars are born from gas clouds, but observing the neutral gas that serves as the fuel for star formation has remained difficult. A new study led by researchers from Chiba University in Japan has now overcome this challenge. Using observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and data from the James Webb Space Telescope (JWST), the team detected signals from neutral gas in galaxies that existed only 700 to 800 million years after the Big Bang.
