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By Ashley Strickland, CNN (CNN) — Scientists are trying to solve a decade-long mystery by determining the identity of anomalous signals detected from below ice in Antarctica. The strange radio waves emerged during a search for another unusual phenomenon: high-energy cosmic particles known as neutrinos. Arriving at Earth from the far reaches of the cosmos,

By Jacopo Prisco, CNN (CNN) — Each year, a tiny species in Australia makes a grueling 620-mile (1,000-kilometer) nighttime migration, and it’s pulling off the feat in a way only humans and migratory birds have been known to do, a new study has found. Bogong moths looking to escape the heat travel in the spring

By Ella Nilsen, Bill Weir, CNN Chief Climate Correspondent SOUTHERN MAINE (CNN) — Colin Goodson knows more about energy than most people. The tall, bearded Mainer is an engineer on an offshore oil drilling ship in the Gulf of Mexico. But when it came time for him to build a home in Southern Maine, Goodson

By Katie Hunt, CNN (CNN) — An enigmatic skull recovered from the bottom of a well in northeastern China in 2018 sparked intrigue when it didn’t match any previously known species of prehistoric human. Now, scientists say they have found evidence of where the fossil fits, and it could be a key piece in another

By Laura Paddison, CNN (CNN) — Rising global temperatures are set to devastate food crops across the world, with particularly alarming impacts projected for the United States, where production of key crops could plummet 50% by the end of the century, according to a sweeping new analysis. Of the many impacts of the fossil fuel-driven

By Ashley Strickland, CNN (CNN) — Astronomers have used mysterious fast radio bursts, or millisecond-long bright flashes of radio waves from space, to help them track down some of the missing matter in the universe. Dark matter and dark energy make up most of the universe. Dark matter is an enigmatic substance that shapes the

By Andrew Freedman, CNN (CNN) — The human fingerprint on global warming was likely evident in Earth’s atmosphere far earlier than previously thought—even before the invention of modern cars, a new study says. Using a combination of scientific theory, modern observations and multiple, sophisticated computer models, researchers found a clear signal of human-caused climate change

By Mindy Weisberger, CNN (CNN) — The sun was setting on a busy London street on a May evening in 1337 when a group of men approached a priest named John Forde. They surrounded him in front of a church near Old St. Paul’s Cathedral, stabbed him in the neck and stomach, and then fled.

By Ashley Strickland, CNN (CNN) — Scientists have identified a previously unknown 86 million-year-old dinosaur species that fills an early gap in the fossil record of tyrannosaurs, revealing how they evolved to become massive apex predators. Researchers analyzing the species’ remains have named it Khankhuuluu mongoliensis, which translates to “dragon prince of Mongolia,” because it

By Ella Nilsen, CNN (CNN) — The Environmental Protection Agency is proposing to scrap two major federal regulations that limit air pollution and planet-warming emissions from coal and gas-fired power plants, the agency’s head announced Wednesday. EPA Administrator Lee Zeldin said the proposal targets a rule regulating all planet-warming carbon emissions from existing and new

By Jack Guy, CNN (CNN) — New research revealing details of gold coins found aboard a shipwreck off Colombia provides further evidence that the vessel was the San José galleon, a 300-year-old Spanish warship believed to contain artifacts worth billions of dollars. Scientists used an unmanned underwater vehicle to survey the wreck and captured images

By Laura Paddison, CNN (CNN) — The collapse of a crucial network of Atlantic Ocean currents could push parts of the world into a deep freeze, with winter temperatures plunging to around minus 55 degrees Fahrenheit in some cities, bringing “profound climate and societal impacts,” according to a new study. There is increasing concern about

By Jack Guy, CNN (CNN) — Scientists studying ancient human remains uncovered in Colombia have found that the people they were researching have no known ancestors or modern descendants. In a study published May 30 in the journal Science Advances, a team of researchers reported on the genetic data of 21 individuals whose skeletal remains

By Jacopo Prisco, CNN (CNN) — An accidental discovery might change how we think about one of the most mysterious structures in our solar system. The Oort Cloud, a large expanse of icy bodies revolving around the sun at a distance 1,000 times greater than the orbit of Neptune, is widely thought to be spherical