Space
Strange nebula changes colour rhythmically like a mood lamp
A mysterious, star-like object seems to be making its nebula change colour and brightness in a rhythmic way every four years
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A mysterious, star-like object seems to be making its nebula change colour and brightness in a rhythmic way every four years
North America will see an annular solar eclipse on 14 October and a total eclipse in April 2024. Scientists are preparing to use these spectacles to study our star's mysterious corona