Friday, January 31, 2025

Cosmologists Try a New Way to Measure the Shape of the Universe

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COSMOLOGY | ALL TOPICS

 

Cosmologists Try a New Way to Measure the Shape of the Universe

By STEVE NADIS

Is the universe flat and infinite, or something more complex? We can't say for sure, but a new search strategy is mapping out the subtle signals that could reveal if the universe had a shape.

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BIOPHYSICS

 

How Does Life Happen When There's Barely Any Light?

By ASHER ELBEIN

Under the sea ice during the Arctic's pitch-black polar night, cells power photosynthesis on the lowest light levels ever observed in nature.

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ARTIFICIAL INTELLIGENCE

 

Chatbot Software Begins to Face Fundamental Limitations

By ANIL ANANTHASWAMY

Recent results show that large language models struggle with compositional tasks, suggesting a hard limit to their abilities.

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