John Carter McKnight
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John Carter McKnight's Friends

  • Mrinalini Nikrad
  • Rayna Elizabeth
  • Albert A Harrison
  • Kathryn Denning
  • Julia DeMarines (Teaspoon)
  • Sara Imari Walker
  • Sanjoy Som

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What best describes you?
Student, Outreach coordinator, Science communicator, Science enthusiast

Hi everybody!

I'm a PhD candidate at Arizona State, in Human & Social Dimensions of Science & Technology (or Science & Technology Studies, at most institutions). My research focuses on emergent governance in highly-technological spaces, from online communities to polar research stations and (speculatively) space settlements.

I was the first Executive Director of The Mars Society, and founder of its Law & Governance Task Group, have been a member of the Board of Directors of the Space Frontier Foundation, a space-entrepreneur advocacy organization, and member of several space policy working groups.

Sara's brought me around because I've managed several online communities in the space field, and she found me eager to lend a hand here in any way I can. Looking forward to getting to know you all!

As of last week, I'm Graduate Fellow for Starship Initiatives at ASU's Lincoln Center for Applied Ethics. I need business cards :)

Much more on my website, http://johncartermcknight.com/

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At 9:49am on August 14, 2012, Mrinalini Nikrad said…

I know, that's so cool! Well I am finishing up my PhD in microbial ecology at the University of Delaware. My research focus was on polar regions so I collected all my samples in Antarctica. It was a dream come true to do research down there! I'll be graduating next year and then it's on to the next adventure! No idea where that will be :) What about you? Looks like you've been doing a lot!

At 12:05pm on March 20, 2012,
Sara Imari Walker

Welcome John! We are so excited to have you join us on S.A.G.A.N.!



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Blog Posts

¿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…


100 years tomorrow 26th April 2020 since we looked beyond the Milky Way Galaxy

Posted by Andrew Planet on April 25, 2020 at 11:10am 0 Comments

Exactly 100 years ago tomorrow, the subject on whether this Universe is larger than the Milky Way Galaxy was brought up publicly at an event sponsored by the National Academy of Sciences, known as The Great Debate. Until then the Milky Way was thought to be this Universe.  Conference at the NAS http://www.nasonline.org/about-nas/events/annual-meeting/nas157/

See this…


The 5th Mexican School of Astrobiology

Posted by Tardigrelda on June 24, 2019 at 1:00pm 0 Comments

I am really glad to invite everyone to the next Mexican School of Astrobiology (aka EMA) which is this August.

¡Anímate a participar en la 5ta Escuela Mexicana de…


A consortium of representatives of European Research Organisations has taken the initiative to create a virtual institute named the “European Astrobiology Institute” (EAI) with the ambition of enabli…

Posted by Wolf D. Geppert on February 24, 2019 at 1:33am 0 Comments

A consortium of representatives of European Research Organisations has taken the initiative to create a virtual institute named the “European Astrobiology Institute” (EAI) with the ambition of enabling Europe to emerge as a key player in Astrobiology and to…



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Ask your questions here!

Started by Gina Riggio in SAGANet Discussions. Last reply by Graham E. Lau 3 hours ago. 119 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

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 Apr 3. 0 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

zahra cell

Started by adam nurjaman in Education and Public Outreach Mar 7. 0 Replies

Hallo apa kabar ? semoga selalu baik2 saja zahra cell adalah blog yang…Continue

Tags: cell, zahra

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