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A mysterious comet from beyond our solar system is giving astronomers a rare glimpse into alien worlds -- and it may have formed in a place far colder and stranger than anything around our Sun. The interstellar visitor, called 3I/ATLAS, contains an . ...

The Universe's biggest black holes may not be born giants after all. Scientists analyzing gravitational-wave signals from dozens of black hole collisions found evidence that the heaviest black holes are likely "cosmic recyclers" -- formed through ...

Astronomers using the James Webb Space Telescope have spotted something that shouldn't exist--at least not so early in the universe. A massive galaxy, formed less than 2 billion years after the Big Bang, appears to have no rotation at all, a trait .. ...

A bizarre planetary pairing 190 light-years away is challenging everything astronomers thought they knew about how worlds form. A "lonely" hot Jupiter -- typically found without nearby companions -- is sharing its system with a smaller mini-Neptune . ...

In a major breakthrough, scientists have experimentally confirmed a universal growth law in two dimensions using a quantum system of fleeting light-matter particles. The finding strengthens the idea that wildly different processes--from crystals to . ...

Cumberland, B.C. is reimagining its coal mining past as a clean energy opportunity. Water trapped in abandoned mine tunnels could be used in a geothermal system to heat and cool buildings efficiently and with minimal emissions. The project could ...

A bold step toward returning humans to the Moon is underway with Blue Origin's uncrewed MK1 "Endurance" lander, designed to test the technologies that future astronauts will rely on. Built in partnership with NASA, the mission will showcase precision ...

A powerful new electromagnetic thruster has taken a major step forward after a successful high-energy test at NASA's Jet Propulsion Laboratory. Fueled by lithium vapor and driven by intense magnetic forces, the experimental engine reached record ...

Penn researchers have developed a smarter AI method for solving notoriously difficult inverse equations, which help scientists uncover hidden causes behind observable effects. By introducing "mollifier layers" that smooth noisy data, they've made ...

A scorching, airless world just 48 light-years away is offering scientists a rare glimpse into the geology of distant planets. Using the James Webb Space Telescope, researchers studied LHS 3844 b--a tidally locked "super-Earth" with a permanent ...