At some level, I made a choice that I don’t want to support, personally, his ecosystem. —Astronomer Mark McCaughrean of the European Space Agency, speaking to Science about his decision to start using ...

In this photo provided by Christopher Hayden, a light baby blue spiral resembling a galaxy appears amid the aurora for a few minutes in the Alaska skies near Fairbanks, Saturday, April 15, 2023. The ...

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