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Tag Archives: extraterrestrials
Extraterrestrial Existence
Shouldn’t Earth have been visited by extraterrestrials already? Enrico Fermi, a physicist from Italy, asked the same question in 1950 and sparked a wonderful conversation in the field of astronomy and astrobiology. In 1975, Michael Hart published “An Explanation for the Absence of Extraterrestrials on Earth,” noting that the lack of intelligent life from the … Continue reading Extraterrestrial Existence → Continue reading
Posted in Aliens, Historical
Tagged astro2110, blog7, extraterrestrials, fermi, Uncategorized
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I Want To Believe!
Forget Fermi’s paradox. Forget the Drake equation. Yet another hot-button topic relating to astronomy and (potential?) extraterrestrial life is- you guessed it- unidentified flying objects (UFOs for short). Do I think it’s kind of a stretch that I’m relating this to chapter 24? Absolutely! But with the (relatively) recent declassification by the Pentagon of three… Continue reading
Posted in Aliens, Class, Historical, Space Travel
Tagged astro2110, blog7, extraterrestrials, UFOs
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Extraterrestrial Civilizations: The Drake Equation
We all love hearing stories about aliens and extraterrestrials. But what if I told you that there is a probabilistic equation that is used by scientists to estimate the amount of active and communicative extraterrestrial civilizations there are in the Milky Way. It is called the Drake Equation and it was made by Frank DrakeContinue reading “Extraterrestrial Civilizations: The Drake Equation” Continue reading
Posted in Class
Tagged astro2110, blog6, drake equation, extraterrestrials
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Let’s Talk about Aliens
I don’t know about you, but thinking of aliens brings up images of UFOs and bright green skin, bulbous heads and an echo of “Take me to your leader.” However, this representation of extraterrestrial life is simply something made up by… Continue reading
Posted in Aliens
Tagged astro2110, blog6, drakeequation, extraterrestrials, fermiparadox
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Life: A Love Story
Sitting in my late-night astronomy lab last night, we watched a computer simulation (based completely on real, observed data) take us out as far into the universe as our understanding has gone. Starting in the Himalayas, Tibet, then Planet Earth, and rapidly, sooner than I thought possible, we were so far out of my realm … More Life: A Love Story Continue reading
Posted in Aliens, Class, Exoplanets, Universe
Tagged astro2110, blog6, extraterrestrials, Solar System, Uncategorized
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Blog 9 (The Unlikelihood of Intelligent Life)
Based on current scientific evidence, asteroids could have spread organic molecules to Earth and many other planets throughout the universe. In all likelihood, there are many organic molecules on most of the planets in the habitable zones of their galaxies, and it definitely seems possible that with all these organic molecules, some kind of primitive […] Continue reading
Posted in Class, Universe
Tagged astro2110, blog9, extraterrestrials, intelligent life
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Earth-Like Planets?
There was a journal article released last week from the Australian National University with the title, “Scientists Predict Earth-Like Planets around Most Stars”. To summarize, using the idea of the “Goldilocks zone” (the distance from a star where liquid water can exist) and applying it to the exoplanets discovered by the Kepler telescope, astronomers have […] Continue reading
Posted in Aliens, Exoplanets
Tagged astro201, blog4, extraterrestrials
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Is There Anybody Out There?
We have always asked the question, “Are we alone in the Universe?” Until now we firmly do not have an answer. But there is a little dreamer kid in all of us, including scientists. Which is why when NASA announced it would be sending a probe to deep space, they decided to include a message … Continue reading Is There Anybody Out There? → Continue reading
Posted in Space Travel
Tagged astro201, blog6, extraterrestrials
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Fermi Paradox
So let’s say there’s intelligent life in the galaxy outside of Earth. We don’t have the technology to visit them and our ability to search for them is limited. Centuries […] Continue reading
Posted in Aliens
Tagged astro201, blog9, destruction, extraterrestrials, fermi, life, paradox
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