Can We Use Remote Sensing to Detect Life on Other Planets?

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Remote sensing could potentially detect life on other planets through methods like spectroscopy, which identifies unstable gas combinations in atmospheres, indicating biological processes. Significant light emissions at night or intense radio waves might also signal the presence of life. The discussion draws parallels to science fiction, highlighting the imaginative aspects of scanning for life. While current technology is advancing, practical applications remain a challenge. Overall, the exploration of these methods could enhance our understanding of extraterrestrial life detection.
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A thread on another forum got me thinking, you know in Star Trek they're somehow usually able to scan a ship or a planet for lifeforms? I wonder, what way could you realistically scan for a life remotely like that?
 
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Spectroscopy looks like a good approach - if there are unstable combinations of gases in the atmosphere (like methane plus oxygen at the same time), something had to produce them recently.
Technology could reveal itself via the emission of significant light at night, intense radio waves or similar things.
 
Be sure to activate your emotional chip, and scan singing to a tune.



(Sorry. Couldn't help it.)
 
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