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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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Century-old theory of where Stonehenge’s Altar Stone came from overturned by new study

By Ashley Strickland, CNN (CNN) — Stonehenge’s Altar Stone, which lies at the heart of the ancient monument in southern England, was likely transported over 435 miles (700 kilometers) from what’s now northeastern Scotland nearly 5,000 years ago, according to new research. The findings of a new study, published Wednesday in the journal Nature, overturn

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