White dwarf star found 'switching on and off' in just 30 minutes for the first time

In a remarkable discovery using NASA’s TESS, astronomers have spotted a white dwarf star ‘switching on and off’ in just 30 minutes for the first time. 

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United Kingdom ,British ,Simone Scaringi ,Durham University Centre For Extragalactic Astronomy ,Durham University ,University Of Durham ,Exoplanet Survey Satellite ,Nature Astronomy ,White Dwarf ,Nasa ,Transiting Exoplanet Survey Satellite ,Tw Pictoris System ,