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A SpaceX Falcon 9 rocket launches carrying Firefly Aerospace's Blue Ghost lunar lander on January 15.

Texas-based Firefly made history with its moon landing. Here’s how it’s fueling its next adventures

By Jackie Wattles, CNN (CNN) — Firefly Aerospace, the first private company to successfully land upright on the moon, is set to make another high-stakes foray — this time into the stock market. Firefly’s stock will begin trading on the Nasdaq Thursday morning under the ticker symbol “FLY.” Founded in 2017 by ex-SpaceX engineer Tom

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4,000-year-old teeth reveal the earliest use of this psychoactive substance

By Rebecca Cairns, CNN (CNN) — For the first time, archaeologists have used advanced scientific techniques on 4,000-year-old dental plaque to confirm traces of betel nut chewing in ancient Thai communities. Betel nuts are usually chewed as “quids,” a mix of slaked lime and ground betel nuts—which contain psychoactive compounds that boost energy, alertness, euphoria,

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Magdalena Zernicka-Geotz is the Bren professor of biology and biological engineering at Caltech.

Lab-grown embryo models are getting more realistic. Scientists are getting more concerned

By Katie Hunt, CNN (CNN) — Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into many different specialized cell types – to form laboratory-grown structures that resemble human embryos. These embryo models

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NISAR lifted off from India on July 30.

US and India launch historic joint mission that could change the way we see Earth

By Ashley Strickland, CNN (CNN) — A first-of-its-kind satellite has launched to track nearly imperceptible changes on Earth’s surface, an effort that could aid with responses to natural disasters. Called the NASA-ISRO Synthetic Aperture Radar mission, or NISAR, the spacecraft is equipped with two kinds of synthetic aperture radar designed by the US space agency

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The Mount Storm coal-fired power station

Trump EPA proposes revoking pollution limits based in part on document authored by 5 climate contrarians

By Ella Nilsen, Andrew Freedman, CNN (CNN) — In one of its most significant reversals on climate policy to-date, the Trump administration on Tuesday proposed to repeal a 2009 scientific finding that human-caused climate change endangers human health and safety, EPA Administrator Lee Zeldin announced. If successful, the repeal could strip away the federal government’s

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An infrastructure project underway for the COP30 UN climate conference which will be held in Belem

The US is sitting out the most consequential climate summit in a decade. It may offer a victory to China

By Ella Nilsen, Laura Paddison, CNN (CNN) — The Trump administration fired the last of the US climate negotiators earlier this month, helping cement America’s withdrawal from international climate diplomacy. It may also have handed a huge victory to China. The elimination of the State Department’s Office of Global Change — which represents the United

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Baby sea turtles in Georgia are struggling to find the ocean this season. Massive interstate lights are to blame, experts say

By Julianna Bragg, CNN (CNN) — During the first week of July, the popular travel center and gas station chain Buc-ee’s opened its largest location in Georgia, just off coastal Interstate 95. But it’s not the beaver-branded merchandise or the smell of barbecue that’s attracting Georgia’s sea turtles — it’s the harsh glare of towering

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Toxic algae are turning South Australia’s coral reefs into underwater graveyards – and there’s no end in sight

By Lex Harvey, CNN (CNN) — What struck Scott Bennett most were the razor clams. The long saltwater clams, resembling old-fashioned razors, normally burrow into sand to avoid predators. But when Bennett, an ecologist, visited South Australia’s Great Southern Reef last month, he saw thousands of them rotting on the sea floor. “100% of them

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