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By Amarachi Orie, CNN (CNN) — Scientists have discovered a 246 million-year-old marine reptile fossil, the oldest of its kind to be found in the Southern Hemisphere, shining a new light on the early evolution of marine mammals. The greatest mass extinction event in the fossil record – known as “The Great Dying” – occurred

By Laura Paddison, CNN (CNN) — It was a shock when Michael Mosley, a doctor and well-known TV presenter in the UK, was found dead earlier this month after hiking in scorching temperatures on the Greek island of Symi. But it is now one of a series of tourist deaths and disappearances in Greece as

By Ashley Strickland, CNN (CNN) — The Voyager 1 spacecraft is sending back a steady stream of scientific data from uncharted territory for the first time since a computer glitch sidelined the historic NASA mission seven months ago. Currently the farthest spacecraft from Earth, Voyager 1 stopped communicating coherently with mission control in November 2023.

By Jackie Wattles, CNN (CNN) — Two veteran astronauts will extend their stay on the International Space Station as teams on the ground work to better understand issues with the Boeing-built spacecraft that carried them to orbit. Boeing and NASA officials said Tuesday that Suni Williams and Butch Wilmore — who arrived at the space

By Jacopo Prisco, CNN (CNN) — For about 50 years, the scientific community has been grappling with a substantial problem: There isn’t enough visible matter in the universe. All the matter we can see — stars, planets, cosmic dust and everything in between — can’t account for why the universe behaves as it does, and

By Laura Paddison and Fidel Gutiérrez, CNN (CNN) — Tensions are rising in a border dispute between the United States and Mexico. But this conflict is not about migration; it’s about water. Under an 80-year-old treaty, the United States and Mexico share waters from the Colorado River and the Rio Grande, respectively. But in the

By Ashley Strickland, CNN (CNN) — A collision between giant asteroids likely occurred in a neighboring star system called Beta Pictoris in recent years, and two different space observatories are helping to tell the tale. The Beta Pictoris system, located just 63 light-years from Earth, has long intrigued astronomers because of its proximity and age.

By Ella Nilsen and Renée Rigdon, CNN (CNN) — When President Joe Biden’s massive climate bill passed Congress in 2022, Republican Rep. Richard Hudson of North Carolina complained it was boondoggle. The Inflation Reduction Act, which contained the largest climate investment in US history, would “throw money at woke climate and social programs that won’t

By Ashley Strickland, CNN (CNN) — In the early 1900s, Antarctica became a hot spot for explorers undertaking intrepid but dangerous expeditions. Polar explorer Sir Ernest Shackleton and his crew of 27 men set off aboard the HMS Endurance in 1914. But Endurance became trapped in ice, documented in dramatic images by the crew’s official photographer.

By Jared Formanek, CNN Hong Kong (CNN) — For Māori conservationist Mere Takoko, “losing one whale is like losing an ancestor.” The animals “taught our people about navigation across the Pacific, particularly across the Milky Way… And this is information that was given to our ancestors.” The environmental activist from the small town of Rangitukia,

By Ashley Strickland, CNN (CNN) — When the sun unleashed an extreme solar storm and hit Mars in May, it engulfed the red planet with auroras and an influx of charged particles and radiation, according to NASA. The sun has been showcasing more activity over the past year as it nears the peak of its

By the Associated Press (AP) — A big, round, 4,000-year-old stone building discovered on a Cretan hilltop is puzzling archaeologists and threatening to disrupt a major airport project on the Greek tourist island. Greece’s Culture Ministry said Tuesday that the structure is a “unique and extremely interesting find” from Crete’s Minoan civilization, famous for its

By Taylor Nicioli, CNN (CNN) — Thousands of fish species — about 2,500 of them named — call the Amazon River home, but scientists estimate nearly half of the marine creatures lurking in the massive stretch of water remain undiscovered. While studying piranhas and pacus in an effort to better assess vital fish biodiversity in the 4,000-mile-long

By Amanda Schupak, CNN (CNN) — On the western slopes of the Andes in Ecuador, John L. Clark, a research botanist at Florida’s Marie Selby Botanical Gardens, happened upon what he calls a miracle. In an area of formerly lush cloud forest known as Centinela devastated by clearing, Clark spotted a tiny, 2-inch-high (5-centimeter) plant

By Jack Guy, CNN (CNN) — An amateur paleontologist has discovered a new species of pterosaur, a flying reptile that lived alongside dinosaurs around 100 million years ago. Kevin Petersen, an avocado farmer and curator of the Kronosaurus Korner fossil museum in northwest Queensland, Australia, unearthed a number of fossilized bones in western Queensland in

By Jacopo Prisco, CNN (CNN) — What would be the ultimate solution to the energy problems of an advanced civilization? Renowned British American physicist Freeman Dyson theorized it would be a shell made up of mirrors or solar panels that completely surrounds a star — harnessing all the energy it produces. “One should expect that,

By Taylor Nicioli, CNN (CNN) — Shipwreck hunters have found the vessel Quest — once captained by renowned Antarctic explorer Ernest Shackleton — largely intact on the ocean floor, 15 nautical miles off the coast of Canada, the Royal Canadian Geographical Society has announced. Shackleton was aboard the famed exploration ship when he died of a

By Katie Hunt, CNN (CNN) — The ancient Maya city of Chichén Itzá in Mexico’s Yucatán Peninsula has long been associated with human sacrifice, with hundreds of bones unearthed from temples, a sacred sinkhole and other underground caverns. A long-held misconception is that the victims were often young and female — an impression that has