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A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit -- but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, this icy world could still surprise us.

Scientists studying a rock sample collected by NASA's Curiosity rover have uncovered something tantalizing: the largest organic molecules ever detected on Mars. The compounds -- decane, undecane, and dodecane -- may be fragments of fatty acids, which ...

Deep inside a nearby galaxy cloaked in thick clouds of gas and dust, astronomers have uncovered a surprising treasure trove of organic molecules using the James Webb Space Telescope. Peering through the cosmic veil in infrared light, researchers ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS--only the third known interstellar comet ever spotted. When scientists turned NASA's Swift Observatory toward it, they caught the ...

A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST's powerful vision, astronomers detected sulfur in their atmospheres -- a chemical clue that they formed like Jupiter, by slowly building solid cores. That ...

A long-standing mystery in spintronics has just been shaken up. A strange electrical effect called unusual magnetoresistance shows up almost everywhere scientists look--even in systems where the leading explanation, spin Hall magnetoresistance, ...

Researchers at the University of Michigan have created an AI system that can interpret brain MRI scans in just seconds, accurately identifying a wide range of neurological conditions and determining which cases need urgent care. Trained on hundreds . ...

Time may feel smooth and continuous, but at the quantum level it behaves very differently. Physicists have now found a way to measure how long ultrafast quantum events actually last, without relying on any external clock. By tracking subtle changes . ...

Baker's yeast isn't just useful in the kitchen -- it may also be built for space. Researchers found that yeast cells can survive intense shock waves and toxic chemicals similar to those on Mars. The cells protect themselves by forming special stress ...

Scientists at the University of Warwick have cracked a long-standing problem in air pollution science: how to predict the movement of irregularly shaped nanoparticles as they drift through the air we breathe. These tiny particles -- from soot and ...