The Cutting-Edge of Astrobiology (46)

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So you want to become an astrobiologist?

Becoming an astrobiologist - one scientist's perspective I am asked by a lot of students wanting to know how to become an astrobiologist,…

Started by Sanjoy Som

0 Jul 21, 2014

Updated Link for Life Beyond the Solar System final Virtual Coffee Break

Join the final virtual coffee break session for the "Search for Life Beyond the Solar System" conference today 12:15-12:45MST with Drs. Jil…

Started by Kate Follette

0 Mar 20, 2014

Virtual Coffee Breaks for Life Beyond the Solar System Conference

Unable to attend next week’s “Search For Life Beyond the Solar System: Exoplanets, Biosignatures and Instruments” conference in Tucson, AZ?…

Started by Kate Follette

0 Mar 14, 2014


VIRTUAL STREAM - Search for Life Beyond the Solar System Conference 3/16-3/21

Motivated by the rapidly increasing number of known Earth-sized planets, the increasing range of extreme conditions in which life on Earth…

Started by Sara Imari Walker

0 Mar 12, 2014


Barefooted astrobiologist spreads ideas on intelligence

Hmm... intelligence can be hard to find these days on Earth. But surely there is intelligent life in space? Astrobiologist Charley Lineweav…

Started by Aditya Chopra

11 Oct 20, 2013
Reply by Aditya Chopra

Astrobiology Programs

Does anyone know of any current Astrobiology classes/courses/programs going on now or in 2013? Or any good sources? Thanks!

Started by Kera Tucker

14 Jun 6, 2013
Reply by Anushree Srivastava

What is "life"? Asks Rep. Bucshon

Started by Amber Gray

3 May 25, 2013
Reply by John Jaksich

AstroGardening Kickstarter Project

Hi all! I have a new project I have put onto the crowd-funding site Kickstarter today. It is based on AstroGardening and how to live on Mar…

Started by Dr Louisa Preston

1 Apr 30, 2013
Reply by Sara Imari Walker


Astrobiology Futures - A Roadmapping Activity

Hey everyone! I saw this earlier this week, and thought we should get our SAGANites on board this effort. Check it out: It’s time to chart…

Started by Shawn Domagal-Goldman

0 Apr 26, 2013

Learning about Star compositions seems like a stellar way to spend a day...

It's not too late to join the Stellar Stoichiometry Workshop Without Walls hosted by ASU! Use the following URL to join:

Started by Kera Tucker

0 Apr 11, 2013



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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…


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…


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

¿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 Chirag Parmar on Sunday. 125 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 on Sunday. 0 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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