🔬 Science 10h ago · Anthony Wood

Watch comet PANSTARRS 'switch on' its second tail as it makes closest approach to Earth

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Watch comet PANSTARRS 'switch on' its second tail as it makes closest approach to Earth
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The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its closest approach.

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