May 2017 Blog Posts (6)

Is Biological Cell a Machine?

The following is a 600-word essay which I wrote for Physics of life School at National Center for Biological Sciences-TIFR, Bangalore, India. 

           Biological cells, that all living organisms are made of, singly or collectively, are open dissipative machines, in a complicated assemblage of sub-machines in a hierarchical organization of soft matter, which is a perfect system showing emergent properties. They are ever-evolving, self-replicating machines that utilize energy…

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Added by Suraj kumar sahu on May 29, 2017 at 7:00am — No Comments

Explorations of Oxygen-Free Seas on the Oceanus (Part IV: Methane)

WHAT’S UP WITH METHANE IN OMZs?

Guest post by Abbie Johnson

This is the fourth and final blog post of a series.

Here are links to the first, second and…

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Added by Jen Glass on May 21, 2017 at 10:00pm — No Comments

Explorations of Oxygen-Free Seas on the Oceanus (Part III: Nitrogen)

This is the third blog post of a series on Jennifer Glass’ experience at sea.

Read previous posts here and here

“Water, water, everywhere, Nor any drop to drink.”…

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Added by Jen Glass on May 21, 2017 at 2:30pm — No Comments

Explorations of Oxygen-Free Seas on the Oceanus (Part II: Clemens and Claudia)

 This is the second blog post of a series on Jennifer Glass’ experience at sea.

Read the first part here.

 

Six thousand feet below our ship, three tectonic plates are colliding. Like slow-moving conveyor belts, the Rivera and Cocos Plates creep under the North American Plate. Where the denser oceanic plates…

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Added by Jen Glass on May 17, 2017 at 1:00pm — No Comments

Explorations of Oxygen-Free Seas on the Oceanus (Part I)

Greetings from the Pacific Ocean! I am currently at sea for three weeks with an awesome team of astrobiologists, geochemists and molecular biologists. We are floating off the coast of western Mexico, about 100 miles west of Manzanillo, Mexico, on the Oregon State University research vessel Oceanus.

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Added by Jen Glass on May 12, 2017 at 5:00pm — No Comments

New System Removes Micro pollutants from Water

Removing pollutants from water is the ultimate goal of the purification process.

However, current methods of removal have their share of complications. And tend to be quite energy and chemical intensive, especially when it involves removing contaminants at extremely low…

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Added by Alan Banner on May 10, 2017 at 7:00pm — 1 Comment

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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

Tags: cell, zahra

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