Category Archives: Aliens

Big Planets’ Moons and Life Outside “Habitability”

Astrobiology has long relied on the concept of a “habitable zone”, that is a zone around a star that is the right distance from said star to hold liquid water, and therefore life. This concept is absolutely valuable, especially insofar as it allows us to classify new exoplanets and identify potential exoplanets that may hostContinue reading “Big Planets’ Moons and Life Outside “Habitability”” Continue reading Continue reading

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What Else is Out There?

Ever since I was a child, I have enjoyed science-fiction movies and literature. As a subset of this genre, I truly enjoy when these movies incorporate aliens into the equation. The idea that there may be life outside of our own solar system is simultaneously fascinating and terrifying. The discovery of aliens would be theContinue reading “What Else is Out There?” Continue reading Continue reading

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[Bonus] The Alien Enemy

In the film adaptation of H. G. Wells’s novel, The Ware of the Worlds (1953) imagines a future where the next phase of warfare in human history is the introduction to enemies that are far beyond the bounds of human nature. The invasion of Earth and the introduction of virtually indestructible enemies is a trope […] Continue reading

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More on the Fermi Paradox

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

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Where are they?

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

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Methane-Based Life

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

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the Fermi paradox

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…

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Blog 6: The Fermi Paradox

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

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The Fermi Paradox and The Great Filter

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

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The Rare Earth Hypothesis

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

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