These viridescent runts, spotted just 700 million years after the Big Bang, might have been responsible for one of the greatest makeovers in cosmic history.
Galaxies that helped transform the early universe may have been small, round and green.“Green Pea” galaxies dating to 13.1 billion years ago
. These viridescent runts, spotted just 700 million years after the Big Bang, might have helped trigger one of the greatest makeovers in cosmic history, astronomers said at a January 9 news conference in Seattle at the American Astronomical Society’s annual meeting. Green Peas first showed up in 2009 in images from the Sloan Digital Sky Survey, an ambitious project to map much of the sky. Citizen science volunteers gave the objects their colorful name. Their greenish hue is because most of their light comes from glowing gas clouds, rather than directly from stars.Headlines and summaries of the latest Science News articles, delivered to your email inbox every Thursday.
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