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Tag Archives: life
Life On? Venus
Venus is known as Earth’s sister planet due to their similar sizes and structures, but Venus is a very different world than what we know on Earth. As NASA notes, if you were to slice both Venus and Earth down the middle, their interiors would be very similar, but their surfaces are much different. One […] Continue reading
Life on Europa??
One of humanity’s greatest wonders is if life could exist outside of Earth. Surely humans are not the only living creatures to exist in the entire universe, but where could other organisms flourish? Scientists have identified three key criteria that make life possible: liquid water, chemistry, and energy. Europa, one of Jupiter’s moons and the […] Continue reading
Astrobiology & The Search For Life
Astrobiology is the study of life that occurs somewhere other than Earth, as we’ve learned in class, and this blog post emphasizes its developments and possible future directions. There have been substantial scientific, technological, and programmatic advances achieved in the hunt for extraterrestrial life since the 2015 publication of NASA’s Astrobiology Strategy. Understanding the beginnings […] Continue reading
Posted in Class, Exoplanets, General
Tagged astro2110, astrobiology, blog8, life
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How Extremophiles Work
As we talked about in class a few weeks ago, Extremophiles are living things that flourish under challenging conditions.They are amazing because they can endure situations that would be fatal to the majority of other life forms. They originate from Archaea, Eubacteria, and Eukarya, the three branches of the three-domain categorization scheme. Extremophiles have caused […] Continue reading
Where Are All the Aliens? Potential Solutions to the Fermi Paradox
In class, Dr. G mentioned a Wait But Why article about the Fermi Paradox. I absolutely love this article and the entire concept of the Fermi Paradox–I even wrote about it in my Common App essay four years ago! The Fermi Paradox, first informally presented by physicist Enrico Fermi, describes the apparent contradiction between our […] Continue reading
Posted in Aliens, Class, Space Travel
Tagged astro2110, blog7, fermiparadox, life
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The Statistics of Life
Artist interpretation of Kepler-452b, currently the most Earthlike planet discovered, which could potentially have an atmosphere and life Source: NASA Ames/JPL-Caltech/T. Pyle When faced with an effectively boundless universe, it inevitable to ask the question of how many other lifeforms are out there. In asking this question we tend to be a bit biased, looking […] Continue reading
Posted in Aliens, Class, Observables
Tagged astro2110, blog7, drakeequation, Kepler, life, Uncategorized
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Extremophiles: life finds a way
I remember first learning about extremophiles back in the sixth grade. Back then, I was fascinated by life’s ability to find a way to survive even in the ‘worst’ conditions. Now that I’m older, I am no less fascinated by these amazing organisms, their ability to thrive, and their connection to astronomy. (I only recently […] Continue reading
Posted in Class
Tagged Alien Life, astro2110, astrobiology, bacteria, blog7, earth, extremophiles, life, NASA, tardigrade
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the fermi paradox
Sir Arthur C. Clarke, a British science fiction author, said that “two possibilities exist: either we are alone in the universe or we are not. Both are equally terrifying”. And he was exactly right! The more that we learn about and explore the universe, the more we learn about the possibility of life out there, […] Continue reading
Posted in Aliens, Class, Observables
Tagged aliens, astro2110, blog7, Class, fermi, life, Observables
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Blog 7 – Where did life on Earth come from?
Many people, myself included, may have assumed that life developed here on Earth and evolved from there. However, other promising theories suggest that life may have originated elsewhere and then traveled to Earth on meteorites. These theories are called panspermia theories. Although space is a very harsh vacuum environment, experiments have determined that a number […] Continue reading
Life Beyond Earth
There have been many recent discoveries that suggest life exists beyond Earth. Some of these include new findings on Enceladus (a small moon of Saturn), exoplanets, and even Mars. Enceladus NASA’s Cassini spacecraft collected data that allowed us to simulate the geochemistry of phosphorus in the ocean. This study helped us reach some interesting conclusions […] Continue reading