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By Laura Paddison, CNN (CNN) — Rows of worshippers, some with their faces raised toward the sky, others with their heads bowed, prayed for rain at a mosque in Tehran earlier this month. Theirs is an increasingly desperate plea. The city is grappling with a water crisis so severe the Iranian president has suggested people

By Katie Hunt, CNN (CNN) — The origins of domestic cats — centuries before they conquered the world’s sofas and internet memes — have long been murky. Now, ancient DNA is helping to fill in the blanks, and the findings shake up the traditional story. Archaeologists had thought that cats and humans began living with

By Jacopo Prisco, CNN (CNN) — Tryptophan, the essential amino acid behind the Thanksgiving myth that eating turkey can make you sleepy, has been found to exist on Bennu, a small asteroid that swings by our planet about every six years. The discovery stems from an unprecedented sample collected by NASA’s OSIRIS-REx mission, which landed

By Katie Hunt, CNN (CNN) — Archaeologists say a 3D model of a centuries-old quarry of unfinished stone head statues on Easter Island offers new clues about how these monuments were made and the Polynesian society that brought them into being. Also known as Rapa Nui, the remote island is famed for the gargantuan sculptures

By Jacopo Prisco, CNN (CNN) — A female wild wolf living on the central coast of British Columbia was filmed pulling a crab trap out of the ocean to eat the bait — a never-before-seen behavior that could constitute the first documented use of tools by a wolf. The traps were set by the Heiltsuk

By Jack Guy, CNN (CNN) — New Zealand has announced plans to eradicate feral cats by 2050, as part of efforts to protect the country’s biodiversity. Speaking to Radio New Zealand on Thursday, conservation minister Tama Potaka said that feral cats are “stone cold killers” and would be added to the country’s Predator Free 2050

By Laura Paddison, Andrew Freedman, Ella Nilsen, CNN (CNN) — The world struck a new climate deal at the COP30 summit in Brazil Saturday, which calls for a tripling of funding to help countries adapt to increasingly severe climate impacts. But countries failed to agree to a roadmap away from fossil fuels, after entrenched divisions

By Ashley Strickland, CNN (CNN) — A series of about 5,200 holes stretching nearly a mile (1.5 kilometers) across the Pisco Valley in the southern Peruvian Andes has baffled researchers for nearly a century. But a fresh look at the site, called Monte Sierpe, or “serpent mountain,” may help archaeologists to decipher why ancient people

By Ella Nilsen, Steve Contorno, CNN (CNN) — The Trump administration is proposing to open federal waters off the entire coastline of California to drilling, as well as an area off the coast of Florida. Neither state’s waters have been open to new drilling for decades. President Donald Trump’s Interior Department released a five-year offshore

By Ashley Strickland, CNN (CNN) — The latest images of an interstellar comet shared by NASA have captured how an array of spacecraft witnessed a flyby that was truly out of this world, revealing clues to the object’s composition. Astronomers first detected the rare comet, known as 3I/ATLAS, on July 1. It’s only the third

By Ella Nilsen, CNN (CNN) — The Trump administration moved on Wednesday to roll back Biden-era protections for endangered species and their habitats. The Interior Department’s Fish and Wildlife Service and NOAA’s National Marine Fisheries Service proposed restoring rules from the first Trump administration that stripped safeguards for plants and animals threatened by human development

By Taylor Nicioli, CNN (CNN) — Upon the open grasslands of what is now Kazakhstan, there once stood a Bronze Age settlement that may have served as a center of exchange and power around 1600 BC. The settlement — called Semiyarka and nicknamed “The City of Seven Ravines” for its location overlooking a network of

By Mindy Weisberger, CNN (CNN) — Scientists say they have for the first time unlocked how a parasitic ant uses chemical warfare to take over the nest of a different species, by tricking workers into an unlikely assassination. The deadly scheme unfolds like a Shakespearean drama. In an ant colony, the queen is dying, under

By Gina Park, CNN (CNN) — Sky-gazers worldwide may get the chance to see a celestial display this week as the annual Leonid meteor shower reaches its peak. The Leonids are set to peak at 1 p.m. ET Monday, according to EarthSky. You may start glimpsing meteors at 11 p.m. Sunday local time, which is

By Ashley Strickland, CNN (CNN) — For the first time, astronomers say they have spotted a giant explosion released by a star beyond our solar system. The eruption was similar in some ways to those unleashed by our sun, such as the solar storms that graced the night skies with auroras last week on Earth,