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By Mindy Weisberger, CNN (CNN) — When you’re a predatory fish, sometimes the lunch you gobbled up doesn’t agree with you. Rather than…

By Issy Ronald, CNN (CNN) — The world still holds many unanswered questions. But thanks to the efforts of the research teams awarded the IG…

By Laura Paddison, CNN (CNN) — It started with a melting glacier that set off a huge landslide, which triggered a 650-foot high mega-tsunami…

By Simone McCarthy, CNN Hong Kong (CNN) — A Chinese “reusable experimental spacecraft” believed to be the country’s secretive space plane…

By Katie Hunt, CNN (CNN) — A cataclysm engulfed the planet some 252 million years ago, wiping out more than 90% of all life. Known as the Great…

By Katie Hunt, CNN (CNN) — When archaeologist Ludovic Slimak unearthed five teeth in a rock shelter in France’s Rhône Valley in 2015, it was…

By Jackie Wattles and Ashley Strickland, CNN (CNN) — A four-person crew of civilians on board SpaceX’s Polaris Dawn mission unlocked the…

By Ashley Strickland, CNN (CNN) — Astronomers have observed the detailed motions of giant gas bubbles on the surface of a nearby star for the…

By Jackie Wattles, CNN (CNN) — SpaceX’s Polaris Dawn mission kicked off early Tuesday, launching a four-person crew of civilian astronauts…

By Ashley Strickland, CNN (CNN) — Two telescopes have spotted the closest pair of supermassive black holes to date. The duo, only about 300…

By Mindy Weisberger, CNN (CNN) — Picture a clock ticking so steadily that it doesn’t lose a second, even after running for 1 billion…

By Jackie Wattles, CNN (CNN) — SpaceX’s latest mission — a bold and risky trek into Earth’s Van Allen radiation belts by a four-person…

By Ashley Strickland, CNN (CNN) — The Europa Clipper spacecraft passed a key milestone on Monday and is on track to launch next month to…

By Ashley Strickland, CNN (CNN) — Well-preserved fossils of ancient large reptiles called pterosaurs have revealed that some species flew by…