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SpaceX is about to send four people on a wild — and risky — mission into the radiation belts. Here’s what to know

By Jackie Wattles, CNN (CNN) — When billionaire Jared Isaacman self-funded a mission to orbit Earth in 2021, the project was billed as a childhood cancer fundraiser — and made for an eye-popping entrance into the private space tourism world. The four-person crew of people from various backgrounds with no prior spaceflight experience spent three

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He stumbled onto a large tusk in a Mississippi creek. It turned out to be a first-of-its-kind discovery

By Taylor Nicioli, CNN (CNN) — Amateur fossil hunter Eddie Templeton usually knows when he’s onto something. Having scoured creek banks in Mississippi since he was a kid, Templeton has made several stunning extinct mammal finds, including a mastodon mandible, numerous bones from a giant armadillo-relative, and even a saber-toothed cat’s foot bone. But his latest

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Johannes Kepler thought he sketched Mercury orbiting across the sun. What he actually captured has solved a solar mystery

By Ashley Strickland, CNN (CNN) — German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface — and centuries later, the pioneering drawings are helping scientists solve a solar mystery. Even though everything in the solar system revolves around the sun, scientists have yet to unlock many of

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