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NASA Observatory Captured an 'Eerie' Smile on Sun, Experts Reveal the Dark Holes Are 'Cooler' Spots
NASA Observatory Captured an 'Eerie' Smile on Sun, Experts Reveal the Dark Holes Are 'Cooler' Spots Sun's happiness in an ...
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NASA spotted a hole on the surface of the sun — coronal hole explained
NASA's Solar Dynamics Observatory just spotted a massive hole on the sun called a coronal hole. The hole appears black because it's cooler than its surroundings and is responsible for high-speed ...