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Category Archives: Aliens
For this blog post, I ventured onto YouTube to find a more detailed explanation of the Fermi Paradox. Although there we a video by celebrity scientist Bill Nye on YouTube, I ventured for a more scientific video done by Kurzgesagt – In a Nutshell. The video introduced three categories of civilizations. A type one civilization … Continue reading More on the Fermi Paradox → Continue reading → Continue reading
The Fermi Paradox is a complicated contradiction that considers the probability that other life in the Universe exists, and asks why we have never encountered it. Essentially, some calculations were made to suggest with a high probability that there are many worlds in our universe and even solar system that are habitable, and that the … Continue reading Where are they? Continue reading → Continue reading
Is liquid water necessary for life to form? If judging strictly from the only life we know, of course. However, humanity’s exploration of the universe has just begun, and we can’t say for sure what lies beyond Earth. Other worlds within our solar system have organic compounds that life could possibly evolve from. In particular, … Continue reading Methane-Based Life → Continue reading → Continue reading
The Fermi paradox is named after the famous scientist Enrico Fermi. In this paradox, Fermi acknowledges the apparent contradiction between the amount of extraterrestrial life that we have detected (none) and the high probability that extraterrestrial life exists. For these “high probabilities”, Fermi was drawing on lines of reasoning similar to that presented in the…
The Fermi Paradox is the apparent contradiction between the lack of evidence for extra-solar civilizations and the fact that there is a high probability that many Earth-like planets exist that are older than ours and that it would conceivably be possible to explore the galaxy in a couple million years. Simply stated, where are the … Continue reading Blog 6: The Fermi Paradox → Continue reading → Continue reading
Simply stated, the Fermi Paradox asks the question, “Where Are All The Aliens?” The life-projecting equations we’ve discussed in class, such as the Drake and Seager Equations, all seem to suggest that thousands, millions, or billions of other forms of life should be out there in the universe. But if that’s the case, why haven’t … Continue reading The Fermi Paradox and The Great Filter → Continue reading → Continue reading
I was inspired by Victoria’s post to think more about the Fermi Paradox, and specifically, explanations of the uniqueness of intelligent life on Earth. The Rare Earth Hypothesis is one such explanation; it postulates that conditions favorable to life (and particularly intelligent life) are incredibly rare in the universe. It is in opposition to hypotheses […] Continue reading → Continue reading
Discovered in 1970, Archaea might be the least well-known of the three domains of life (the others being Bacteria and Eukaryota), but it is a fascinating and diverse group of organisms and quite possibly the first on Earth. Like bacteria, archaea are unicellular, prokaryotic organisms, meaning that they lack nuclei and other membrane-bound organelles in […] Continue reading → Continue reading
Despite evidence that suggests that there should be extraterrestrial civilizations, we have not yet detected any signs of these civilizations. This issue is called the “Fermi Paradox,” after Enrico Fermi—a Nobel Prize-winning physicist. Compared to the lifespan of the universe, our sun is relatively young at 4.6 billion years old, so there are older stars […] Continue reading → Continue reading