James Webb Telescope

This artist's impression shows what the distant planet K2-18b, its host star, and another planet in this system might look like. A new analysis from the University of Chicago has cast doubt on a previous finding that concluded the data showed evidence of life on the planet. Credit: European Space Agency/Hubble Space Telescope, M. Kornmesser

Is this alien life – or just a ghost? Scientists reevaluate Webb telescope discovery

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Possible signs of life on a distant planet? Not so fast. New research suggests the signal may be ordinary molecules, not alien biology.
Artist's impression of a large ocean-covered planet orbiting a red dwarf star A. Smith, N. Madhusudhan (University of Cambridge)

Chemical clues on distant planet present “strongest evidence yet” for life outside solar system

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The James Webb Space Telescope has detected possible chemical signs of life in the atmosphere of an exoplanet, but researchers warn it's still too early to tell.