Hidden Gravitational Wave Reveals Black Holes Are 'Bald' — Not 'Hairy'
Are black holes bald or hairy? It all depends on the details of a fleeting overtone.
15:11
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Remote Russian Volcano Turns the Skies Purple
The eruption of a remote Russian volcano in June has been tingeing sunrises and sunsets the world over a gorgeous purple hue.
14:18
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Deep-Sea Explorers Find Rare Shapeshifting Jellyfish with a Prize Inside
Part ghost, part plastic bag, all amazing.
14:02
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Long-Standing Problem of 'Golden Ratio' and Other Irrational Numbers Solved with 'Magical Simplicity'
Mathematicians have finally proved a conjecture on approximating numbers with fractions
14:02
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