Cereal Box-Sized Satellite Shares First Images of Stars While Searching for Life on Exoplanets

A cereal box-sized telescope floating in Earth’s orbit has just taken its first ultraviolet images of nearby stars. These images represent a successful start for NASA’s Star-Planet Activity Research CubeSat (SPARCS), which recently embarked on a mission to study low-mass stars throughout the Milky Way. The initial SPARCS observations are only the first of many…

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EPA moves to roll back recent limits on ethyene oxide, a carcinogen

The Trump administration on Friday moved to roll back Biden-era limits on emissions of ethylene oxide, a cancer-causing chemical often used in the sterilization of medical devices. The Environmental Protection Agency said repealing the rules, which fall under the National Emission Standards for Hazardous Air Pollutants, would “safeguard the supply of essential medical equipment” —…

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World’s largest steam locomotive heads out on tour

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. The world’s largest operating steam locomotive is hitting the road—or tracks. Union Pacific’s Big Boy No. 4014 is heading out on its first coast-to-coast steam tour to celebrate the United States’ 250th anniversary. The first leg begins on March…

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