Sara Imari Walker's Discussions (112)

Discussions Replied To (32) Replies Latest Activity

Expert

"Hello Brittany! Welcome! I echo Sanjoy and think this is a great idea. A discussion…"

Sara Imari Walker replied Feb 24, 2015 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

Expert

"Welcome to SAGANet Kevin! Sounds like you have a diverse set of interests - you shou…"

Sara Imari Walker replied Jan 13, 2015 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

Expert

"This sounds awesome!"

Sara Imari Walker replied Nov 4, 2014 to FameLab USA: New Regional Heat Announced in San Francisco!

1 Nov 4, 2014
Reply by Sara Imari Walker

Expert

"Excellent to see so many new faces!"

Sara Imari Walker replied Jun 3, 2014 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

"Hi Paul, This sounds like a lot of fun. I am based at Arizona State University and m…"

Sara Imari Walker replied May 18, 2014 to Let's talk about astrobiology.

9 Jun 1, 2014
Reply by Paul Carr

Expert

"Welcome Colleen!"

Sara Imari Walker replied Apr 23, 2014 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

Expert

"Hi Stephen, this sounds great. We could put out an announcement out in the next news…"

Sara Imari Walker replied Nov 18, 2013 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

Expert

"Hi Cameron, welcome to SAGAN! I am glad you enjoyed the talk. I'd be happy to do a c…"

Sara Imari Walker replied Nov 18, 2013 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

Expert

"Welcome to so many new members! Very exciting to see where you are all coming from a…"

Sara Imari Walker replied Nov 15, 2013 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

Expert

"Welcome Stephen! Sounds exciting! What sort of volunteers are you looking for? "

Sara Imari Walker replied Nov 15, 2013 to Introductions

67 Mar 25, 2015
Reply by Sanjoy Som

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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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Ask your questions here!

Started by Gina Riggio in SAGANet Discussions. Last reply by Pritha Jaipal yesterday. 127 Replies

If you are trying to ask a question live during Ask an Astrobiologist, please do so in the main chatroom at the bottom of the screen! You can also ask on twitter…Continue

Inhabitation on mars, with plants or without?

Started by Chirag Parmar in The Cutting-Edge of Astrobiology. Last reply by Chirag Parmar on Monday. 2 Replies

hello there, Chirag Parmar this side!i am a biotechnology student and currently on research of plants on other planets! The main issue is the gravity of the planet! If we take mars as an example, the…Continue

Tags: #plantsonplanets, #mars, #plants

Have we been looking in the wrong time-frame? Requesting feedback on a recent paper.

Started by Christopher J Reiss in The Cutting-Edge of Astrobiology. Last reply by Greg Bowen Jun 30. 5 Replies

Let me first say Hi to everyone as a new member here!   I hope you are all safe, sound, and not too stir-crazy during this Pandemic.I recently stumbled upon a notion for SETI which seems so simple I…Continue

Interactive Online Astrobiology for 10-12 yr olds

Started by Julia Brodsky in Education and Public Outreach Mar 9. 0 Replies

If your 10-12 yr old child is interested in space science, I would like to invite them to our courses. I am a former science teacher,  mom of three, and a former NASA astronaut instructor. I also…Continue

Tags: school, education, middle, astrobiology, STEM

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