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By Taylor Nicioli, CNN (CNN) — Powerful observatories such as NASA’s James Webb Space Telescope offer glimpses of galaxies that formed when the universe was still young, but new supercomputer simulations are helping fill the gaps in the mysterious early history of the cosmos. Now, a team of international researchers has developed one of the

By Laura Paddison, CNN (CNN) — Every day, two satellites crisscross the planet from north to south around 16 times, taking hundreds of photos. They’re hunting something invisible and odorless, but which has an outsized impact on our lives: methane. The satellites are run by imaging company Planet Labs alongside Carbon Mapper, a non-profit environmental

By Jacopo Prisco, CNN (CNN) — Scientists have identified one of the oldest Martian rocks ever found on Earth — and it’s revealing new clues about the red planet’s earliest history, including evidence that water altered its crust at least 4.1 billion years ago. The rose-colored meteorite, known as Teghaza 001, has a unique chemical

By Hilary Whiteman, Laura Paddison, CNN (CNN) — A pristine atoll in the Pacific Ocean once owned by late acting legend Marlon Brando is the birthplace of a technology that could help solve a problem created far beyond its sandy shores. Alex Gagnon and fellow oceanographer Julian Sachs, co-founders of Seattle-based Banyu Carbon, were on

By Jack Guy (CNN) — Archaeologists have found the earliest evidence of people consuming cannabis for psychoactive purposes in a tomb dating back almost 3,000 years, according to a new study. Researchers found preserved cannabis seeds and human hair at the monumental elite tomb in southern Siberia, lead study author Gino Caspari, a researcher at

By Laura Paddison, CNN (CNN) — Far out in the Pacific Ocean, between Hawaii and California, a wide patch of water has been changing color over the past two decades, becoming significantly bluer and greener. It may sound inviting, but scientists have discovered there may be a disturbing reason for it: increasing plastic pollution. This

By Andrew Freedman, Sam Hart, CNN (CNN) — Renewable sources of energy are on the rise around the world, from solar panels paired with battery storage to rapid electric vehicle adoption. Countries are expanding the share of energy coming from these cleaner sources when compared to fossil fuels, particularly outside of the US. But there

By Dharma Niles, CNN Night owls have the chance to spot a few dazzling fireballs as the Southern Taurid meteor shower hits peak activity. Southern Taurid meteors strike Earth’s atmosphere at about 65,000 miles per hour (104,607 kilometers per hour), making them slower and visible for longer than those produced by showers such as the

By Jackie Wattles, Ashley Strickland, CNN (CNN) — NASA’s Neil Gehrels Swift Observatory met a fiery end on Wednesday morning, nearly 22 years after it launched to study the most powerful explosions in the universe. Data from the US Space Force estimates the 3,200-pound spacecraft plunged into Earth’s atmosphere over Indonesia around 7:39 a.m. ET.

By Mindy Weisberger, CNN (CNN) — A centuries-old stone coffin discovered more than 150 years ago at London’s Westminster Abbey sparked a question that has endured ever since: Who’s inside? Now, archaeologists have clues that point to a respected medieval figure who was not the burial’s original occupant. Prior research had determined that the sarcophagus

By Jacopo Prisco, CNN (CNN) — The popular theory that comets were crucial in kick-starting life on Earth billions of years ago may not hold up, according to new computer simulations that counter decades of scientific thinking. The finding suggests the fragile organic molecules supposedly carried by the icy objects would have been destroyed on

By Laura Paddison, CNN (CNN) — A shrinking ice cap in Arctic Canada tells a striking story of how humans may have halted the planet’s next ice age by burning fossil fuels, according to new research. Around 20,000 years ago, the once vast Laurentide Ice Sheet sprawled from the Arctic Circle as far south as

By Ashley Strickland, CNN (CNN) — Before Agatha Christie became one of the best-selling authors of all time, she worked in a chemist’s shop in her hometown of Torquay, England, in service of someone she referred to in her memoir only as Mr. P. Mr. P carried a dark lump of curare in his pocket

By Jacopo Prisco, CNN (CNN) — Astronomers have spotted a new dwarf planet candidate in the solar system, beyond the orbit of Pluto, which they provisionally named ED138. If future observations confirm the discovery, ED138 will join a group currently made up of five dwarf planets that have been recognized by the International Astronomical Union,