Hubble looks way, way, way back
The Hubble Space Telescope has captured the earliest image yet of the universe - just 600 million years after the Big Bang, when the universe was just a toddler.
Scientists released the photo Tuesday at a meeting of the American Astronomical Society. It's the most complete picture of the early universe so far, showing galaxies with stars that are already hundreds of millions of years old, with signs of the first cluster of stars.
These young galaxies haven't yet formed their familiar spiral or elliptical shapes and are much smaller and quite blue in color. That's mostly because at this stage, they don't contain many heavy metals, said Garth Illingworth, a
"We're seeing very small galaxies that are seeds of the great galaxies today," Illingworth said at a news conference.
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Related article: A Guide to the Cosmos, in Words and Images
Related book: Far Out: A Space-Time Chronicle
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