Extraterrestrial Life Forms


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Have We Already Been Visited by Aliens? | The New Yorker

Have We Already Been Visited By Aliens? | The New Yorker

An eminent astrophysicist argues that signs of intelligent extraterrestrial life have appeared in our skies. What’s the evidence for his extraordinary claim? Jan 25, 2021 ... ... of intelligent extraterrestrial life have appeared in our skies. ... to the gases they throw off, which form their signature tails. [ReadMore..]

Aliens: The search for extraterrestrial life forms: Will we ever be able ...

Aliens: The Search For Extraterrestrial Life Forms: Will We Ever Be Able ...

Every so often, news breaks about the discovery of an unexplained alien object, but the claims never hold up to intense scientific scrutiny. The quest goes on regardless Feb 10, 2022 ... Every so often, news breaks about the discovery of an unexplained alien object, but the claims never hold up to intense scientific scrutiny. [ReadMore..]

Critical review of chirality indicators of extraterrestrial life ...

Critical Review Of Chirality Indicators Of Extraterrestrial Life ...

The major revolution in modern astronomy recognizing the universe as teeming with exoplanets, the discovery of liquid water in solar moons, and the co… Life forms which use both enantiomers: At the moment there are no principle arguments against the possibility of life which uses the two enantiomers of key ... [ReadMore..]

Extraterrestrial life - Wikipedia

Extraterrestrial Life - Wikipedia

The Drake equation speculates about the existence of sapient life elsewhere in the universe. The science of extraterrestrial life in all its forms is known as ... [ReadMore..]

Wanted Dead or Alive Extraterrestrial Life Forms (Thermodynamic ...

Wanted Dead Or Alive Extraterrestrial Life Forms (Thermodynamic ...

For more than 100 years, humanity (both specialists and enthusiastic laics) has been searching for extraterrestrial life hoping we are not alone. The first step in the quest for extraterrestrial life is to define what and where exactly to look for. Thus, the basic definition of living matter is a conditio sine qua non for the quest. The diversity of species on Earth is so large that our quest for extraterrestrial life cannot be limited to forms and shapes present and known to us from our environment. However, there are two formal conditions that must be fulfilled in order for something to be assumed as living matter. First, it should represent a growing open thermodynamic system (in biological terms - a cell), and thus be a system out of equilibrium. Second, it must perform synthesis, self-assembly and accumulation processes (in biological terms to grow, maintain homeostasis, respond to environment, reproduce, exchange matter and energy, evolve). Populated planets are consisted of two components: biosphere an Oct 23, 2018 ... Wanted Dead or Alive Extraterrestrial Life Forms (Thermodynamic criterion for life is a growing open system that performs self-assembly ... [ReadMore..]

The Search for Extraterrestrial Intelligence - Scientific American

The Search For Extraterrestrial Intelligence - Scientific American

There can be little doubt that civilizations more advanced than the earth's exist elsewhere in the universe. The probabilities involved in locating one of them call for a substantial effort. Since intelligence and technology have a high survival value it seems likely that primitive life forms on the planets of other stars, evolving over many ... [ReadMore..]

Communication with Extraterrestrial Intelligence

Communication With Extraterrestrial Intelligence

As to advanced forms of life-advanced by our own miserable earth standards-Dr. Frank D. Drake of the National. Radio Astronomy Observatory at Green Bank, West. [ReadMore..]

Life, Here and Beyond

Life, Here And Beyond

But that extraterrestrial presence on regular display is, of course, a fiction. No life beyond ... What led to the proliferation of new life forms on Earth? [ReadMore..]

"Methanogens, Plausible Extraterrestrial Life Forms On Mars, And ...

Methanogens, some of Earth’s most primitive prokaryotic organisms, are candidates for possible life forms capable of inhabiting Mars. Specifically, four different species (Methanobacterium formicicum, Methanococcus maripaludis, Methanosarcina barkeri, Methanothermobacter wolfeii) were analyzed for their tolerance to the presence of illite clay. Illite is a crystalline mineral that has been identified from regions of Mars’s surface. Results indicated that all four species grew with some success in the illite at different concentrations. This experimentation with methanogens’ abilities to survive and reproduce in the presence of illite allows for a more accurate understanding of the potential capability of microbial growth in Martian conditions. Methanogens, some of Earth's most primitive prokaryotic organisms, are candidates for possible life forms capable of inhabiting Mars. [ReadMore..]

The pages related to extraterrestrial life forms are also listed below:

    Extraterrestrial evidence: 10 incredible findings about aliens from ...

    Extraterrestrial Evidence: 10 Incredible Findings About Aliens From ...

    Dec 24, 2020 ... Astrobiologists were a-twitter with anticipation and skepticism in September when news broke of potential evidence of life in the upper clouds ... [ReadMore..]

    Why Extraterrestrial Life May Not Seem Entirely Alien | Quanta ...

    Why Extraterrestrial Life May Not Seem Entirely Alien | Quanta ...

    The zoologist Arik Kershenbaum argues that because some evolutionary challenges are truly universal, life throughout the cosmos may share certain features. Mar 18, 2021 ... No planet will have a complex form of life that popped into existence all on its own. Whatever life is like on an alien planet, ... [ReadMore..]