Physics – Geophysics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011a%26g....52f...6.&link_type=abstract
Astronomy & Geophysics, Volume 52, Issue 6, pp. 6.06-6.06.
Physics
Geophysics
Scientific paper
No-one has yet found artefacts from an alien civilization, but have we looked hard enough?
Astronomers seeking signs of extraterrestrial intelligence have suggested a novel approach: look for alien cities.
The search for signs of life in the universe has included the detection of complex organic molecules, seen as a step on the way to living things. But now analysis of spectral signatures known as Unidentified Infrared Emission features found in stars, interstellar space and galaxies suggest that complex organic molecules can be made in stars in a matter of weeks without the presence of life.
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