Analyse @PhysicsNews's tweets
@PhysicsNews
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Today is Halloween and tonight it will be an extra spooky one as our night sky will be graced by a blue moon – the second full moon in a month. Full moons appearing at Halloween are rare – occurring every 19 years, so the next time it will happen is 2039. #Halloween #BlueMoon https://t.co/Aafv2dxbPD