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By Ashley Strickland, CNN (CNN) — An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, dubbed 3I/ATLAS, came within about 126 million miles (203 million kilometers) of our star, according

CNN By Ashley Strickland, CNN (CNN) — An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic neighborhood yet. The comet, dubbed 3I/ATLAS, came within about 126 million miles (203 million kilometers) of our star,

By Ashley Strickland, CNN (CNN) — During an expedition to search for a famed shipwreck, researchers discovered something unexpected: striking geometric patterns on the floor of Antarctica’s western Weddell Sea created by fish. The seafloor had once been obscured beneath a thick ice shelf, but that changed in July 2017 when the massive A68 iceberg

By Taylor Nicioli, CNN (CNN) — Glowing bats may sound like Halloween decor, but researchers in Georgia have discovered certain species of North American bats that are capable of the unusual trick. When placed under ultraviolet lighting, six species of the critters were found to emit a green luminescence. It is the first record of

By Andrew Freedman, CNN (CNN) — The water around Jamaica had been simmering all summer. By the time Hurricane Melissa roared ashore Tuesday, that uber-warm Caribbean Sea had helped turn it into a monster: a Category 5 storm with winds reaching 185 miles an hour, tied for the strongest hurricane to strike land in the

CNN By Andrew Freedman, CNN (CNN) — The water around Jamaica had been simmering all summer. By the time Hurricane Melissa roared ashore Tuesday, that uber-warm Caribbean Sea had helped turn it into a monster: a Category 5 storm with winds reaching 185 miles an hour, tied for the strongest hurricane to strike land in

By Mindy Weisberger, CNN (CNN) — Recent analysis of two fossils from Australia, estimated to be about 50,000 years old, suggests that Australia’s First Peoples valued big animals for their fossils as well as for their meat, collecting bones and transporting them over great distances. For decades, scientists viewed cut marks on the fossils as

By Taylor Nicioli, CNN (CNN) — Near the end of his reign, French emperor Napoleon Bonaparte led an army of over half a million men in an invasion of Russia in 1812. Six months later, after the army was forced to retreat, an estimated tens of thousands of his soldiers made it back to France.

By Jacopo Prisco, CNN (CNN) — A type of mosquito that was believed to have evolved in the London Underground has a much older origin in the Mediterranean, according to a new genetic study. The myth originated during World War II when Londoners sheltering from German warplanes in subway stations had to endure bites from

By Amanda Schupak, CNN (CNN) — In the badlands of eastern Wyoming, the Lance Formation is a trove of prehistoric fossils. And one area in particular — a region less than 10 kilometers (6 miles) across — has provided scientists with at least half a dozen remarkably well-preserved dinosaur specimens complete with details of scaly

By Ashley Strickland, CNN (CNN) — A site in the San Juan Basin of northwestern New Mexico is providing a rare glimpse into the last days of the dinosaurs. Rocks and fossils at the Naashoibito Member site show an ecosystem that was filled with a diverse population of dinosaurs just before they disappeared from Earth.

By Andrew Freedman, CNN (CNN) — Tropical Storm Melissa is expected to meander the Caribbean at an agonizingly slow pace in the coming days, even as it’s forecast to strengthen into a hurricane, covering as little as 2 miles in an hour. This is slower than an average person’s walking speed. Hurricanes are powerful storms,

By Andrew Freedman, CNN (CNN) — The Billion-Dollar Weather and Climate Disasters Database, which the Trump administration “retired” in May, has relaunched outside of the government using the same methodology. In its first update at the new site, the database shows that the first six months of 2025 have been the most expensive first six

By Hadas Gold, Jackie Wattles, CNN (CNN) — Elon Musk lashed out at Transportation Secretary Sean Duffy in a series of insulting posts on his social media platform X on Tuesday, after Duffy suggested NASA may sideline SpaceX from its moon mission. Musk, SpaceX’s CEO, called Duffy “Sean Dummy,” accused him of having a “2

By Laura Paddison, CNN (CNN) — Iceland’s frozen, inhospitable winters have long protected it from mosquitoes, but that may be changing. This week, scientists announced the discovery of three mosquitoes — marking the country’s first confirmed finding of these insects in the wild. Mosquitoes are found almost everywhere in the world, with the exception of

By Jackie Wattles, CNN (CNN) — NASA may sideline SpaceX and choose a different company to land its astronauts on the moon later this decade, acting space agency chief Sean Duffy suggested during TV appearances Monday. Duffy emphasized that he believes SpaceX, which has a $2.9 billion contract to provide the lunar lander astronauts would