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Doughnut-shaped region found inside Earth's core deepens understanding of planet's magnetic field
Vast ‘doughnut’ discovered in molten metal of Earth’s core
Doughnut-shaped region found inside Earth’s core deepens understanding of planet’s magnetic field - EurekAlert
Iron meteorites hint that our infant solar system was more doughnut than dartboard
The universe may have a complex geometry — like a doughnut
Doughnut-shaped swirls of laser light can be used to transmit images
Lasers smaller than a human hair emit doughnut-shaped light
Tiny Wonders Revealed: How “Doughnut” Light Beams Unlock Microscopic Mysteries
'Doughnut' beams help physicists see incredibly small objects
