What Is a Light-Year? A light-year is the distance light travels in one year. Light moves incredibly fast — about 186,000 miles (300,000 kilometers) per second, covering 5.88 trillion miles (9.46 ...
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NASA’s ISS Spots Unseen Phenomenon 55 Miles Above Earth—What’s Really Going On?Hurricane Helene struck the Florida coast with fierce winds and devastating rain. However, the effects of the storm did not ...
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