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CNN By Amy Woodyatt, CNN A vaccine used to treat chlamydia in Australia’s koala population has been approved for rollout, in a world-first project. Researchers from the University of the Sunshine Coast spent more than 10 years developing a single-dose vaccine to protect the famed Australian marsupial from the effects of chlamydia, which include urinary

By Amy Woodyatt, CNN A vaccine used to treat chlamydia in Australia’s koala population has been approved for rollout, in a world-first project. Researchers from the University of the Sunshine Coast spent more than 10 years developing a single-dose vaccine to protect the famed Australian marsupial from the effects of chlamydia, which include urinary tract

By Mindy Weisberger, CNN (CNN) — Neuroscientists from 22 labs joined forces in an unprecedented international partnership to produce a landmark achievement: a neural map that shows activity across the entire brain during decision-making. The data, gathered from 139 mice, encompass activity from more than 600,000 neurons in 279 areas of the brain — about

By Katie Hunt, CNN (CNN) — Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event akin to the one that wiped out dinosaurs 66 million years ago. But this time the

By Laura Paddison, CNN (CNN) — Ice creams, frozen desserts and super-chilled sodas take on a new appeal in sticky summer heat. As climate change drives hotter temperatures, Americans are consuming more and more of them, new research finds, with worrying health consequences. There is plenty of evidence climate change will shape food availability and

By Taylor Nicioli, CNN (CNN) — Many sky-gazers around the world will get the chance to see a dazzling celestial display this weekend — a total lunar eclipse that could cause the moon to take on a deep reddish hue. The lunar eclipse will be visible Sunday for those in Europe, Africa, Asia and Australia,

By Ella Nilsen, Andrew Freedman, CNN (CNN) — The Environmental Protection Agency has moved to suspend more than 100 staffers who signed a letter of dissent against the Trump administration’s policies in July, a representative of the union covering the agency’s staff told CNN on Friday. The EPA previously moved to fire a handful of

By Jacopo Prisco, CNN (CNN) — Spaceflight makes certain human stem cells age faster, a new study has found, furthering scientists’ understanding of the potential effects of space exploration on the human body. Stem cells are found throughout the body, and they can make more of themselves or turn into other specialized cells — including

By Ella Nilsen, CNN (CNN) — Offshore wind developers and the attorneys general of Rhode Island and Connecticut are suing the federal government in an effort to reverse a stop-work order on a nearly complete wind farm off the coast of Rhode Island. It’s the latest development in a rapidly escalating battle between President Donald

By Taylor Nicioli (CNN) — The Shroud of Turin — a 14-foot-long linen cloth bearing an image of a crucified man — has captivated people for centuries, stirring debate over whether the relic once wrapped the body of Jesus Christ. For some, the cloth serves as visual proof of Jesus’ resurrection; for others, it is

By Lianne Kolirin and Issy Ronald, CNN (CNN) — The world’s largest iceberg is “rapidly breaking up” into several large “very large chunks,” scientists from the British Antarctic Survey (BAS) have said. Previously weighing nearly a trillion metric tonnes (1.1 trillion tons) and spanning an area of 3,672 square kilometers (1,418 square miles) — slightly

By Mindy Weisberger, CNN (CNN) — Tens of millions of years ago, an apex predator resembling a giant crocodile stalked the humid freshwater floodplains of southern Patagonia. Measuring up to 11.5 feet (3.5 meters) long and weighing about 550 pounds (250 kilograms), it ate whatever it could catch. Including some dinosaurs. Near the southern tip

By Issy Ronald and Amarachi Orie, CNN Glow-in-the-dark plants bright enough to light up streets at night may sound like the stuff of science fiction or fantasy. But scientists have already made plants that emit a greenish glow. They are even commercially available in the United States. A group of Chinese researchers has just gone

By Jackie Wattles, Kristen Holmes, CNN (CNN) — President Donald Trump said Tuesday that he will move the military’s US Space Command to Huntsville, Alabama — undoing a decision by the Biden administration to keep operations in Colorado Springs, Colorado. The US Space Command, or SPACECOM, is a joint command separate from the US Space

By Laura Paddison, CNN (CNN) — A beach in Melbourne, Australia has been bathed in a “ethereal glow” at nighttime this week thanks to bioluminescent algae adding a shimmering, electric blue hue to the water and sand. Richard Pensak first saw the algae — called Nocticula scintillan and sometimes referred to as “sea sparkle” —

By Andrew Freedman, CNN (CNN) — More than 85 veteran climate scientists have pushed back against a Trump administration report downplaying the severity of climate change, submitting more than 400 pages in public comments to the Energy Department on Tuesday. The department’s Climate Working Group report, released July 29 alongside proposals to deregulate some polluting

By Jackie Wattles, CNN A powerful solar storm is expected to reach Earth on Monday evening, potentially triggering a display of northern lights across the northern hemisphere. The stunning wave of auroras may be visible much farther south than is typical, reaching not just the northern US states but also parts of the lower Midwest

By Katie Hunt, CNN (CNN) — Forty years ago, in the early hours of September 1, grainy black-and-white images of a metal cylinder appeared on the video feeds in the command center of Knorr, a research vessel searching the Atlantic seafloor for the world’s most famous shipwreck: the Titanic. Members of the four-person watch team,