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Researchers see 'aurora' above sunspot

Mysterious Aurora-Like Radio Emissions Uncovered Above a Sunspot

'Peculiar' aurora-like radio signal from sunspot discovered for the 1st time

NJIT Scientists Uncover Aurora-Like Radio Emission Above a Sunspot

Scientists uncover aurora-like radio emission above a sunspot

Scientists uncover aurora-like radio emission above a sunspot

Kepler predicted that Venus' diameter is almost a quarter of the Sun's diameter, so Mercury should have a tenth of the Sun's diameter. Pierre Gassendi saw the true size of Mercury in 1631 during its transit across the Sun, and was surprised by how small it was as it looked like a sunspot