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Physicists think they've spotted the ghosts of black holes from another universe

8 years 1 month ago
We are not living in the first universe. There were other universes, in other eons, before ours, a group of physicists has said. Like ours, these universes were full of black holes. And we can detect traces of those long-dead black holes in the cosmic microwave background (CMB) — the radioactive remnant of our universe's violent birth.
Rafi Letzter, Staff Writer

Eerie sky glow is 'completely unknown' to science

8 years 1 month ago
Late at night on July 25, 2016, a thin river of purple light slashed through the skies of northern Canada in an arc that seemed to stretch hundreds of miles into space. It was a magnificent, mysterious, borderline-miraculous sight, and the group of citizen skywatchers who witnessed it decided to give the phenomenon a fittingly majestic name: "Steve."
Brandon Specktor, Senior Writer
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6 minutes 41 seconds ago
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