How to view this week’s rare hybrid eclipse | CNN

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Earth Hour: Why people across the world are turning their lights off | CNN

CNN  —  Each year, millions of people from over 190 countries and territories coordinate to turn…

RNA compound and vitamin B3 found in samples from near-Earth asteroid | CNN

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Doomsday in 2046? Asteroid as huge as an Olympic swimming pool may hit Earth, says NASA

An asteroid, which is estimated to be as big as an Olympic swimming pool, may crash…

Earth’s innermost layer is a 400-mile-wide ball of iron, new study suggests | CNN

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Launching balloons high into the atmosphere to unload sun-reflecting particles: Big climate solution or colossal disaster? | CNN

CNN  —  When US startup Make Sunsets released two weather balloons into the skies above Mexico’s…

SpaceX put a Tesla sportscar into space five years ago. Where is it now? | CNN

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Historic moon mission ends with splashdown of Orion capsule | CNN

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New era begins with China’s launch of crewed mission to its space station | CNN

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The hunt for habitable planets may have just gotten far more narrow, new study finds | CNN

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