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NASA quietly hunting for ETs in LEO and the moon (and maybe Earth)



 
 
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Old April 16th 21, 12:41 AM posted to alt.astronomy
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Default NASA quietly hunting for ETs in LEO and the moon (and maybe Earth)


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Technosignatures, Telescopes, and Life on Mars

Micah Hanks
Apr 15, 2021 12:20 pm
The Intelligence Debrief

Technosignatures

Welcome to your weekly Intelligence Brief. In our roundup this time
are 1) software updates being sent to NASA's robots on Mars, 2) how
some scientists are proposing novel ways of searching for evidence of
intelligent extraterrestrials, and 3) why the telescopes of tomorrow
may be gamechangers in the search for extraterrestrial intelligence. ...

Other Signs of Life: Technosignatures and Space Wreckage

Although Perseverance's mission may be among the most ambitious
efforts to find evidence of life on other worlds currently underway,
sending robotic probes to find evidence of past or present microbial
life is only one method scientists have proposed for finding evidence
of extraterrestrials. Other possibilities that have been proposed in
recent days involve searches for technological remnants of past
intelligent civilizations, or even evidence of extraterrestrial
activity that might currently detectable around nearby planets.

A recent NASA-funded paper outlined a number of innovative strategies
astronomers might begin to employ in the search for technosignatures
of extraterrestrial civilizations, which even included scouring
planets like Mars and Mercury, as well as the moons of these planets
(and our own) for evidence of crashed probes or other technologies.

Talking recently with Jacob Haqq-Misra, Senior Research Investigator
at Blue Marble Space Institute of Science and one of the recent
paper's coauthors, I asked him about whether searching for
technosignatures on nearby planets-or even Earth's moon-seemed like a
worthwhile idea.

"We will not know until we look," Haqq Misra said, adding that among
those who have advocated the idea had been his colleague Daniel
Angerhausen, who presented a poster at TechnoClimes a while back
"about his ongoing research to use machine learning to search for
anomalies in high-resolution lunar surface data."

"Mars is another good place to search for surface artifacts,"
Haqq-Misra says. "Likewise we could look in the asteroid belt for
evidence of mining by extraterrestrial visitors."

Other possible strategies include more traditional methods involving
telescopes to conduct searches for extraterrestrial
civilizations. However, with the advanced telescopes we can expect to
see in the years ahead, it is also likely that there will be
significant improvements in their ability to detect possible evidence
of alien technologies.

Technosignatures and the Telescopes of Tomorrow

"The best telescopes being considered that could search for some
technosignaturesare mission concepts that are currently being studied
by NASA, such as LUVOIR and the Origins Space Telescope," Haqq-Misra
told The Debrief. "ESA also has a mission concept known as LIFE that
could search for technosignatures. Our paper describes ideal missions
for technosignature-focused observations, but I doubt there will be a
mission any time soon that is dedicated to searching for
technosignatures."

[image] James Webb TelescopeAn artist's rendition of the James Webb Telescope

"The James Webb Telescope might be able to characterize the atmosphere
of one or 2 nearby systems," Haqq Misra adds, "so this could be one
of the first attempts to search for biosignatures and
technosignatures. However, the best missions are the concepts
currently under study like LUVOIR and Origins, which would not launch
for about 20 years."

Haqq Misra also told us that there are ways growth in the private
sector could benefit astronmer's searches for technosignatures. As an
example, he cited the Breakthrough Listen initiative as an example.

"But even commercial space exploration could provide indirect
benefits," Haqq Misra told The Debrief, "as the demand for a
space-trained workforce will lead to more graduates in astronomy and
planetary science, which could also help to increase overall awareness
and interest in technosignature science."

....

--
Upcoming events:

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