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ASU Astrobio (GLG 460) Fall 2017

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ASU Astrobio (GLG 460) Fall 2017

This group is for students in Sara Walker's GLG 460: Astrobiology Fall 2017.

Members: 8
Latest Activity: Nov 22, 2017

Discussion Forum

Are We Unique in the Cosmos?

Started by Jacob Jordan Nov 22, 2017. 0 Replies

Astrobiology presents a unique framework to investigate both the distribution and probability of life in the universe and the future evolution of the human species as whole. Both of these aspects…Continue

An Important Problem Facing Astrobiology

Started by Brett Smaga Nov 22, 2017. 0 Replies

All scientific disciplines face their own unique set of challenges. As new discoveries are made, new questions arise that make us rethink what our goals are and what we are striving to obtain. Some…Continue

Guiding Our Path By Knowing Where We Came From

Started by Joe Holland Nov 21, 2017. 0 Replies

 “Astrobiology,” the word itself conjures images of analyzing aliens on some red-skied moon orbiting a gas giant. However, in the 21st century, astrobiology does not meet these sci-fi visions. In…Continue

Origins of Life Underground: A Case for Survival during Heavy Bombardment Earth

Started by Jacob Jordan Sep 11, 2017. 0 Replies

At the present time, I believe the most plausible hypothesis for the origin of life is that it originated within the Earth in environments where hyperthermophilic organisms could thrive (beneath the…Continue

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Comment by Elizabeth Briggs-Ellis on November 22, 2017 at 3:31pm

 

The most significant open questions in astrobiology are How did we get here?  Where did we come from? Are We Alone in the Universe? These are most significant because they are the main thing that astrobiologist study daily. The main question is Are We Alone? But in order to answer than you need to ask and answer the other questions as well. If we know where and how life started on Earth then we can figure out where and how it can start elsewhere, the perfect habitable conditions for life.  A lot of assumptions must be made when looking for life because we only have one main data point to work with. We assume that life elsewhere will progress at the similar rates as ours and eventually a someone similar intelligent life will be present if life isn't wiped out all together.

The SETI Institute is a not-for-profit research organization whose mission is to explore, understand, and explain the origin and nature of life in the universe, and to apply the knowledge gained to inspire and guide present and future generations. It aims for discovery and for sharing knowledge as scientific ambassadors to the public, the press, and the government.  SETI stands for the "search for extraterrestrial intelligence".  (SETI) This institution takes the assumption that life will evolve similar to Earth and is actively looking for intelligent life with the capability for communication similar to humans.

Big question in Astrobiology is where did we come from? What is the origin of life on Earth. This is still mostly unknown, there are many ideas and hypothesis as to what happened to kickstart life but there are very few facts and answers. It is agreed upon that all life came from one LUCA or last universal common ancestor (Schopf 2002). If we could answer how life started on the only data point we have then it would set us up to unlocking how life starts on other planets or even engineering life on Earth.  



Schopf, J. William (ed) 2002. Life's origin: the beginnings of biological evolution. University of California Press. ISBN 0-520-23391-3. A recent survey of the field.

 

“Our Work.” Our Work | SETI Institute, www.seti.org/node/647.

 

 

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Blog Posts

Using tried and tested methods of constructing habitats from ethnobotanical and ethnozoological useful species for self sustainability on Mars

Posted by Andrew Planet on June 26, 2020 at 8:00am 0 Comments

To maximize crop yields on Mars it would be advantageous to do away with annuals and biannuals by engineering the latter into perennials as standard. Not only would that entail far less work to grow produce as the act of replanting is made obsolete, but per given cultivated area perennials bring forth more food and materials with less demand from the soil than the equivalent of annuals.

Imagine a superfood annual such as lentils engineered into a lentil tree for which there already…

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Free astrobiology webinars for kids, summer 2020

Posted by Julia Brodsky on June 13, 2020 at 12:28pm 0 Comments

This summer, Art of Inquiry hosts free space exploration and astrobiology webinars for middle-school students and their families all over the world.



Here is a list of what was covered so far, as well as an updated schedule of webinars:

The search for life in the Universe, Dr. Alex Tsapin, JPL (retired)

The history of SETI, SETIQuest editor, Larry…

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Radiolysis-powered life

Posted by Andrew Planet on June 11, 2020 at 9:56pm 7 Comments

This paper greatly extends the possibility of what a Goldilocks zone can be.  Its no longer the Goldilocks zone as a single expanse, its the Goldilocks zones for a particular area

https://royalsocietypublishing.org/doi/pdf/10.1098/rsif.2016.0459

¿Are the Venusian sulphuric acid clouds the by product of long dead anoxogenic photosynthetic organisms?

Posted by Andrew Planet on May 4, 2020 at 2:51pm 2 Comments

I just read the piece at the link below entitled "Study: Life might survive, and thrive, in a hydrogen world."

I'd been thinking on similar lines recently, on different atmospheres with early life, but I was considering anoxogenic bacteria whose byproduct is sulfur instead of molecular oxygen. ¿Had life evolved on Venus could its sulfuric clouds be the signature byproduct of such life with no branches ever evolving to produce the equivalent of Earth's Great…

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Discussion Forum

Are We Unique in the Cosmos?

Started by Jacob Jordan Nov 22, 2017. 0 Replies

Astrobiology presents a unique framework to investigate both the distribution and probability of life in the universe and the future evolution of the human species as whole. Both of these aspects…Continue

An Important Problem Facing Astrobiology

Started by Brett Smaga Nov 22, 2017. 0 Replies

All scientific disciplines face their own unique set of challenges. As new discoveries are made, new questions arise that make us rethink what our goals are and what we are striving to obtain. Some…Continue

Guiding Our Path By Knowing Where We Came From

Started by Joe Holland Nov 21, 2017. 0 Replies

 “Astrobiology,” the word itself conjures images of analyzing aliens on some red-skied moon orbiting a gas giant. However, in the 21st century, astrobiology does not meet these sci-fi visions. In…Continue

Origins of Life Underground: A Case for Survival during Heavy Bombardment Earth

Started by Jacob Jordan Sep 11, 2017. 0 Replies

At the present time, I believe the most plausible hypothesis for the origin of life is that it originated within the Earth in environments where hyperthermophilic organisms could thrive (beneath the…Continue

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