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Source: Forbes
Revealed: Why We Should Look For Ancient Alien Spacecraft On The Moon, Mars And Mercury According To NASA Scientists
March 22, 2021 | By Jamie Carter, Senior Contributor Science
Source: Forbes
Revealed: Why We Should Look For Ancient Alien Spacecraft On The Moon, Mars And Mercury According To NASA Scientists
March 22, 2021 | By Jamie Carter, Senior Contributor Science
From UFO crash sites on other planets and aliens “lurking” on asteroids to a permanent radio ... [+] GETTY
From UFO crash sites on other planets and aliens "lurking" on asteroids to a permanent radio telescope on the far side of the Moon, a new NASA-funded study into the search for intelligent extraterrestrial life (SETI) details how future NASA missions could purposefully look for the "technosignatures" of advanced alien civilizations.
Described as evidence for the use of technology or industrial activity in other parts of the Universe, the search for technosignatures has barely begun, but could unearth something surprising without much additional spend, says the study.
After more or less ceasing its search for technosignatures in 1993 after pressure by politicians, NASA has become increasingly involved in SETI.
Published in the specialized journal Acta Astronautica, the study includes a list of what's NASA missions could detect as observational "proof of extraterrestrial life" beyond Earth.
Perhaps most intriguingly, the paper suggests that interstellar probes might have been sent into the Solar System a long time ago, perhaps during the last close encounter of our Sun with other stars.
The closest star to the Sun right now, Proxima Centauri, is over 4.2 light-years distant, but roughly every 100,000 years a star comes within nearly a light-year from the Sun. There have therefore been "tens of thousands" of opportunities for technologies similar to ours to have launched probes into our Solar System, according to the paper.
"Such artifacts might have been captured by Solar System bodies into stable orbits or they might even have crashed on planets, asteroids or moons," reads the paper. "Bodies with old surfaces such as those of the Moon or Mars might still exhibit evidence for such collisions."
The paper's nine suggestions for technosignature-hunting missions include:
Mission 1: search for crash sites on the Moon, Mars, Mercury or Ceres
The surfaces of these places are ancient and unchanging. Evidence of impacts or existing artifacts might be preserved for between millions and billions of years—so we should scan the Moon and Mars in ultra-high resolution.
Mission 2: look for pollution using Earth as a template
As recently published for NASA by the same authors, the JWST could find CFC gases—proof of civilization—around exoplanets if it was 10 times more common than on Earth. It could also find nitrogen dioxide (NO2), produced as a byproduct of combustion or nuclear technology.
Please go to Forbes to read more.
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This is all well and fine but does this species have to look for this technology and civilizations "out there" or is that technology already here but we just don't know about it? We are likely to find out over the next six months or so.
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