New powerful telescopes allow direct imaging of nascent galaxies 12 billion light years away

How does a galaxy like our own Milky Way form? Until now there’s been a lot of inferring involved in answering that question. The basic story is that gas collects toward the center of roughly spherical “halos” of matter. The gas then cools, condenses, fragments and eventually collapses to form stars...

Topics:  science   
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