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A distant Sun-like star suddenly went dark for months, stunning astronomers who quickly realized something massive was passing in front of it. Observations revealed a gigantic disk of gas and dust filled with vaporized metals, swirling around an ...

Scientists are finding new ways to replace expensive, scarce platinum catalysts with something far more abundant: tungsten carbide. By carefully controlling how tungsten carbide's atoms are arranged at extremely high temperatures, researchers ...

A groundbreaking new radio image reveals the Milky Way in more detail than ever before, using low-frequency radio "colors" to map the galaxy's hidden structures. The image is sharper, deeper, and wider than anything previously released, uncovering .. ...

Astronomers have spotted a rare, rule-breaking quasar in the early Universe that appears to be growing its central black hole at an astonishing pace. Observations show the black hole is devouring matter far faster than theory says it should--about 13 ...

Europa's subsurface ocean might be getting fed after all. Scientists found that salty, nutrient-rich surface ice can become heavy enough to break free and sink through Europa's icy shell, delivering essential ingredients to the ocean below. The ...

Chemists at UCLA are showing that some of organic chemistry's most famous "rules" aren't as unbreakable as once thought. By creating bizarre, cage-shaped molecules with warped double bonds--structures long considered impossible--the team is opening . ...

Blockchain could make smart devices far more secure, but sluggish data sharing has held it back. Researchers found that messy network connections cause massive slowdowns by flooding systems with duplicate data. Their new "Dual Perigee" method lets .. ...

NASA astronaut Suni Williams has retired after 27 years of service and a career defined by endurance, leadership, and firsts in space. She spent 608 days in orbit, completed nine spacewalks, and twice commanded the International Space Station. ...

A long-standing law of thermodynamics turns out to have a loophole at the smallest scales. Researchers have shown that quantum engines made of correlated particles can exceed the traditional efficiency limit set by Carnot nearly 200 years ago. By ...

Scientists are learning how to temporarily reshape materials by nudging their internal quantum rhythms instead of blasting them with extreme lasers. By harnessing excitons, short-lived energy pairs that naturally form inside semiconductors, ...