Physics
Water telescope鈥檚 first sky map shows flickering black holes
The High Altitude Water Cherenkov observatory has released its first map of the high-energy sky, catching pulsars, supernova remnants and blazars switching on and off
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The High Altitude Water Cherenkov observatory has released its first map of the high-energy sky, catching pulsars, supernova remnants and blazars switching on and off
The edge of a black hole, beyond which not even light can escape, can be smooth an uneventful or a burning wall of fire, depending on your perspective