Articles written by J. Xavier Prochaska
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Half the matter in the universe was missing – we found it hiding in the cosmos
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) J. Xavier Prochaska, University of California, Santa Cruz and Jean-Pierre Macquart, Curtin University (THE CONVERSATION) In the late...
New powerful telescopes allow direct imaging of nascent galaxies 12 billion light years away
(THE CONVERSATION) 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...