What if the James Webb Space Telescope was pointed at an exoplanet exactly like the Earth? Would it recognize a civilization like ours?
What if NASA's groundbreaking James Webb Space Telescope was pointed straight at an exoplanet exactly like the Earth? Would it recognize a civilization like ours?, a team of researchers including NASA and Jet Propulsion Lab scientists examined high-resolution spectra taken by a Canadian satellite called SCISAT. The data identified a variety of molecules, including water vapor, carbon dioxide, and CFCs, which are clear indicators of industrial activity.
As it turns out, despite their attempts to obscure the data, they could still identify these molecules, even up to a distance of 50 light-years — a fascinating finding that makes our failure to detect such a technosignature in the cosmos all the more striking.
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