All Blog Posts (133)

PLANET FORMATION CLARIFIED BY YOUNG STAR SYSTEM

PLANET FORMATION CLARIFIED BY YOUNG STAR SYSTEM

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Added by David Morton Rintoul on August 21, 2021 at 7:10pm — No Comments

COSMIC QUERIES – A REVIEW



COSMIC QUERIES – A REVIEW

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Added by David Morton Rintoul on August 19, 2021 at 8:18am — No Comments

Hubble Tension May Be Loosening

HUBBLE TENSION MAY BE LOOSENING



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Added by David Morton Rintoul on July 19, 2021 at 1:16pm — No Comments

Mars Helicopter 'Ingenuity' Takes Flight

The Mars Helicopter Ingenuity made the first powered, controlled flight on another planet today. Discover the challenges the flight overcame and the next steps for the mission.

I remember a new fad in the toy business back in the mid-90s. The company behind it was called AirHogs, and they were based here in Canada. My brothers and I were in our 30s and 40s, but we weren’t too old to compare our piloting skills with these fun little gadgets.

Airhogs were a line…

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Added by David Morton Rintoul on April 19, 2021 at 5:51pm — No Comments

LIGHTNING STRIKES VITAL TO ORIGIN OF LIFE

Lightning strikes have played a part in theories on the origin of life since Darwin. Discover how a new study sheds more light on the role of lightning in bringing life to our planet.

We had just finished dinner, and we were relaxing in the living room of the cottage. Before we even had time to be frightened by it, lightning struck a tree in the front yard, incinerating it.

It was all over before anyone realized what had happened. The tree was about twenty feet from…

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Added by David Morton Rintoul on April 3, 2021 at 5:56pm — No Comments

BIG BANG AFTERGLOW SHOWING HOW GALAXIES FORM

The Big Bang Afterglow is known as the Cosmic Microwave Background (CMB). Discover how combining CMB data with galactic observations is unlocking the secret of galaxy formation.

I’ve run into counterfeit currency a couple of times. In one case, when I was a travelling consultant, I came home from Nashville with a dodgy US fifty-dollar bill. My credit union sent it off to Ottawa to have it tested, and it turned out to be genuine.

Another time, I handed a cashier a…

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Added by David Morton Rintoul on March 19, 2021 at 8:11pm — No Comments

UNIVERSE’S EXPANSION RATE STILL HARD TO PIN DOWN

The Universe’s expansion rate, the Hubble constant, is vital to understanding the Cosmos’ origin and fate. Find out how the latest technique for measuring the Hubble constant sheds new light on the past and future.



I was a travelling consultant for about twenty years, and I spent a significant part of that time sitting on airplanes. I was so at home on the planes that I even had a preferred seat.

I liked to sit beside the emergency exit if possible. That row…

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Added by David Morton Rintoul on March 10, 2021 at 3:27pm — No Comments

GRAVITOMAGNETISM: DOES IT EXPLAIN AWAY DARK MATTER?





Gravitomagnetism is the energy created by spinning objects in the fabric of spacetime. Find out why it may explain away the mysterious Dark Matter for which scientists have been searching unsuccessfully.



When I first took astronomy back in the 1980s, there was a feeling that most of the mysteries about the cosmos were very…

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Added by David Morton Rintoul on March 5, 2021 at 6:51pm — No Comments


Facilitator
Defining Lyfe in the Universe: From Three Privileged Functions to Four Pillars

Abstract

Motivated by the need to paint a more general picture of what life is—and could be—with respect to the rest of the phenomena of the universe, we propose a new vocabulary for astrobiological research. Lyfe is defined as any system that fulfills all four processes of the living state, namely: dissipation, autocatalysis, homeostasis, and learning. Life is defined as the instance of lyfe…
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Added by Andrew Planet on January 30, 2021 at 4:18pm — No Comments


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Using tried and tested methods of constructing habitats from ethnobotanical and ethnozoological useful species for self sustainability on Mars

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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Added by Andrew Planet on June 26, 2020 at 8:00am — No Comments

Free astrobiology webinars for kids, summer 2020

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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Added by Julia Brodsky on June 13, 2020 at 12:28pm — No Comments


Facilitator
Radiolysis-powered life

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

Added by Andrew Planet on June 11, 2020 at 9:56pm — 7 Comments


Facilitator
¿Are the Venusian sulphuric acid clouds the by product of long dead anoxogenic photosynthetic organisms?

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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Added by Andrew Planet on May 4, 2020 at 2:51pm — 2 Comments


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

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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Added by Andrew Planet on April 25, 2020 at 11:10am — No Comments

The 5th Mexican School of Astrobiology

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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Added by Tardigrelda on June 24, 2019 at 1:00pm — 1 Comment

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…

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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Added by Wolf D. Geppert on February 24, 2019 at 1:33am — 1 Comment

AbSciCon session on life in high salt habitats

Abstract submissions are open for AbSciCon 2019!  You can check out the full selection of sessions here, however, I'd like to draw your attention toward the session Salty Goodness: Understanding life, biosignature…

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Added by Jeff Bowman on December 14, 2018 at 8:12am — No Comments

vemala Network

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Added by Apit Supriatna on October 7, 2018 at 1:07am — No Comments

Important Tips to Writing Good Dissertations

Writing a research paper is a challenging task full of challenges. The process is involving, time-consuming and requires knowledge of several skills. The following tips are, however, essential to help students deliver maximally on their project.

 Consider working in a group: forming a dissertation group may be an important approach to work on a thesis. A research project is an involving and sometimes working on it alone may be discouraging and boring. This may lead to procrastination…

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Added by Anna Roberts on August 3, 2018 at 3:06am — No Comments

Expert tips for writing the perfect paper

Teachers expect nothing less than a winning essay from their students, however, submitting an article that meets these standards is tricky. When the bar is set high, some individuals get intimidated by the instructor's expectations. Student’s who do not feel up to the task because they are running out of time can place an order with a professional writing service. The article you compose reflects on your knowledge, therefore, it is essential to have your facts…

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Added by Anna Roberts on July 24, 2018 at 1:26am — No Comments

Forum

Ask your questions here!

Started by Gina Misra in SAGANet Discussions. Last reply by Peter Rasenberg Sep 1. 198 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 @saganorg…Continue

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