Is it possible for aliens to call humans because they’re buried under too much ice? That’s exactly what Alan stern, a planetary scientist at the Southwest Institute in Boulder, colo., thinks it might delay human contact with alien civilizations
Most extraterrestrial life is likely to be located in the “deep heart” of their planetary home; The hypothesis of
may explain the lack of signals from other technologically advanced civilizations, a puzzle known as Fermi’s paradox
Astronomers have only recently begun to realize how common the oceans are in our solar system evidence for their existence can be found on Jupiter, Saturn, Neptune, and even the moons of Pluto far away
these water ice forms towering mountains and fractured canyons on the surface of celestial bodies, but melts into liquid water at lower depths.
these submarine hydrothermal vents may inject nutrients into the surrounding environment, similar to the ecosystem at the bottom of the earth’s ocean These lives protected by thick ice shells are even more productive than the environment exposed to human beings
If creatures living in a cold ocean world can evolve into intelligent creatures, they may not know the night sky as well as humans.
stern speculates that, unlike human’s “space program”, their “space program” may be different;
Stern’s idea is not based on new evidence, but is the first to link the universality of the cold ocean world with the lack of extraterrestrial signals
The idea is intriguing, says psychologist Douglas Vakoch, President of the society for extraterrestrial intelligence bioinformatics in San Francisco, California, although he doesn’t think it’s necessary to invoke Fermi’s paradox.
Vakoch says biochemical markers in organisms are difficult to detect remotely and may require new telescopes and technologies to find them If they don’t find us in the first place, it’s probably because they don’t think it’s worth long-distance communication, especially if they think everyone else is trapped in their own little ice bubbles
Fermi paradox is put forward by Nobel Prize winner and physicist Fermi. The implication of
Fermi paradox is that, theoretically speaking, human beings can fly to the stars of the galaxy in one million years. So, as long as the evolution of extraterrestrials is one million years earlier than human beings, they should come to the earth now In other words, Fermi paradox describes the contradiction between overestimation of the existence of extraterrestrial civilization and the lack of relevant evidence
At present, people’s search for extraterrestrial intelligence includes the SETI project, which aims to use radio telescopes and other advanced equipment to receive electromagnetic waves from the universe, and analyze the regular signals, hoping to discover alien civilization. The
SETI project uses a large electronic telescope to detect and receive the quot; sound quot; in outer space;
scientists then analyze these signals by computer, hoping to find information from other planets