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Gina Riggio Female Fayetteville, AR United States: Like

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Started this discussion. Last reply by Mert Kabalcı yesterday. 121 Replies 8 Likes

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

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What best describes you?: Science communicator, Grad Student

Main Affiliation: University of Arkansas

About Me: I am interested in sustainable agriculture, indoor farming, the intersection of agriculture and climate change, and closed loop food production in space! I'm a PhD student at the University of Arkansas, and also the acting administrator of SAGANet. Send me your questions any time!

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At 4:50pm on October 18, 2018, Chelsea said…: I live in Texas and I’m pretty lost on how to become an astrobiologist lol. I want to major in Biology and minor in Astronomy or Planetary science. I don’t think it matters which college I go to(?). I really want to do research. If you have any tips can you help?? Thank you!

At 10:33am on August 20, 2018, Van Robinson said…: I have been interested in astrobiology for about 8 years.

I went to the biennial NASA meeting at

Johnson Space center a few years ago.

At 1:35am on August 14, 2018, Debdatta said…: Hi.
Could you help me with what to do next if I'm to pursue astrobiology in my further education?
I'm currently in my final year of graduation and I'm a microbiology student.

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¿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 0 Likes

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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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 0 Likes

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…

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The 5th Mexican School of Astrobiology

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

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…

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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 4 Likes

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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