March 2016 Blog Posts (3)


Expert
Why humans rule the Earth

Humans are the world’s most dominant species.

 

I think this is something that most people would agree with, but probably for different reasons. While other organisms may be more numerous (like the Pelagibacter ubique bacteria, thought to number ~10^28 [1]), or contributing more total mass (also probably the Pelagibacter ubique bacteria, which is estimated to have a collective mass more than…

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Added by Harrison on March 25, 2016 at 12:00pm — 4 Comments

The Gray Area of Life

The Problem of Defining Life

The question "what is life?" seems at first to be a strange one with clear answers. You typically know it when you see it, and everyday examples are easy to list: people, dogs, grass, trees, ants, and so on. All of those things appear to have something special that a rock or a screwdriver does not. However, it takes more than a few examples and a vague special something to form a rigorous universal definition for life. In practice,…

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Added by Greg Vance on March 18, 2016 at 6:32pm — 3 Comments

Solid, Liquid, Gas…. Life.

“What we use to call biophysics often is just physics of biological material or the dynamics of the material processes involved. …. I am asking for a ‘physics of biology’.” -Manfred Eigen 2000.

What is a Phase of Matter?

    In school, we are taught about states of matter: solid, liquid and gas. Normally people graduate high school with the impression that those represent the only examples of states of matter- you may remember hearing something about a…

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Added by Cole Mathis on March 4, 2016 at 12:00pm — 2 Comments

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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…

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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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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

Ask your questions here!

Started by Gina Riggio in SAGANet Discussions. Last reply by JohnCDraper Jun 26. 122 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

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

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