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By Andrew Freedman, CNN (CNN) — A record-breaking and astonishingly expansive marine heat wave is underway in the Pacific Ocean, stretching about 5,000 miles from the water around Japan to the West Coast of the United States. The abnormally warm “blob” of ocean water, which is getting a significant boost from human-caused global warming, is

By Jacopo Prisco, CNN (CNN) — Astronomers might be close to confirming the presence of an Earth-like atmosphere on an exoplanet for the first time, if more detailed analyses verify preliminary observations from the James Webb Space Telescope. The planet is part of a planetary system about 40 light-years away from Earth called TRAPPIST-1, which

By Katie Hunt, CNN (CNN) — A plan to genetically engineer a version of the dodo, a giant flightless bird that disappeared 400 years ago and became the poster child for extinction, has made some headway, according to Texas-based biotechnology firm Colossal Biosciences. The company’s scientists said they have succeeded in culturing specialized cells from

By Bill Weir, CNN Chief Climate Correspondent It was 1985, and improvised empathy was cool. News reports of families starving to death in drought-stricken Ethiopia were enough to move the lead singer of the Boomtown Rats to assemble a British supergroup to help save them. Bob Geldof, Band Aid and “Do They Know It’s Christmas”

By Laura Paddison, CNN (CNN) — This summer scientists drilled deep below the Atlantic Ocean off the coast of northeastern US and tapped into a huge, mysterious reservoir of freshwater — what they discovered could have big implications for a world grappling with an increasingly severe water crisis. The existence of freshwater beneath the Atlantic

By Ashley Strickland, CNN (CNN) — Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research. The newly discovered celestial object, named 2025 PN7, is a type of near-Earth asteroid that orbits the

By Ella Nilsen, CNN (CNN) — New England, long burdened with some of the nation’s highest electricity costs, is facing a growing energy crisis. Winter cold snaps routinely send utility bills soaring in a region where natural gas fuels most of the grid. Offshore wind was seen as the answer — a long-promised relief for

By Ashley Strickland, CNN (CNN) — Researchers have uncovered an unusual survival strategy in Iberian harvester ants that turns basic biology on its head: The queens can produce eggs that develop into two different ant species. A team uncovered this bizarre reproductive trait while trying to solve the mystery of a missing ant species. Preliminary

By Mindy Weisberger, CNN (CNN) — A clutch of 28 dinosaur eggs found in the Qinglongshan fossil reserve in central China is about 86 million years old, according to scientists who used an “atomic clock” method to date the samples. Researchers said they now hope the eggs, and the technique employed to evaluate their age,

By Andrew Freedman, Jackie Wattles, CNN (CNN) — NASA has banned Chinese citizens with US visas from participating in agency programs — a dramatic escalation in the space race between China and the United States. It occurs as China gears up to send a crewed mission to land and potentially establish a habitat on the

By Jacopo Prisco (CNN) — Astronomers have detected a collision between two black holes in unprecedented detail, offering the clearest view yet into the nature of these cosmic oddities and confirming long-held predictions made by legendary physicists Albert Einstein and Stephen Hawking. The event, dubbed GW250114, became known in January when researchers spotted it with

By Ella Nilsen, CNN (CNN) — Climate scientists are declaring victory after the Trump administration dissolved a working group of five well-known climate contrarians that authored a recent federal report questioning the severity of climate change and even portraying it as potentially beneficial. A letter dated September 3 from Energy Sec. Chris Wright confirming the

By Ashley Strickland, CNN (CNN) — Scientists believe intriguing leopard spots on a rock sampled by the Perseverance rover on Mars last year may have potentially been made by ancient life, NASA announced Wednesday. The team has also published a peer-reviewed paper in the journal Nature about the new analysis, though they say further study

By Andrew Freedman, CNN (CNN) — For the first time, scientists have quantified the causal links between worsening heat waves and global warming pollution from individual fossil fuel and cement companies, pushing the boundaries of extreme weather event research in multiple surprising ways. The new study, published Wednesday in the journal Nature, looks at a