VPL Astrobiology Colloquium Series presents Jason Barnes

Event Details

VPL Astrobiology Colloquium Series presents Jason Barnes

Time: October 14, 2014 from 3pm to 4pm
Location: Adobe Connect
Website or Map: http://connect.arc.nasa.gov/u…
Event Type: online, seminar
Organized By: Mike Toillion
Latest Activity: Oct 14, 2014

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Event Description

Life, Jim, but Not as We Know It: Prospects for Life in Titan's Hydrocarbon Seas

Presenter: Jason Barnes, University of Idaho
When: October 14, 2014 3PM PDT

The prerequisites for life are thought to be: (1) a liquid solvent; (2) chemical building blocks; and (3) an energy source. Life like we have on the Earth uses water for its solvent and organic molecules for its building blocks. Hence searches for Earth-like life can focus on habitable zones around stars where liquid water can be stable on planetary surfaces. But is water the only solvent in which life can exist?

Though more exotic solvents (like ammonia, liquid nitrogen, or supercritical carbon dioxide) may exist in extrasolar systems, the only surface liquids outside of Earth that we know about today occur on Saturn’s smoggy moon Titan. I will describe these seas, their chemistry, and hydrology, with an eye toward whether they could serve as possible abodes for life. Recent Cassini discoveries show evaporitic bathtub rings and 'salt’ flats around seas, which indicate that at least some materials do dissolve in the lakes. I will also discuss new Cassini RADAR evidence for compositional variations between the seas, and VIMS observations that may show the first sea-surface waves ever seen outside of Earth.


To join using a videoconferencing system:

Please RSVP to Mike Toillion (mike.toillion@nasa.gov) if you will be joining by Polycom.

To view the slides, connect to http://connect.arc.nasa.gov/uwseminar/


To join using a web browser:

The slides and audio/video for this meeting will be presented using Adobe Connect. To join the meeting, connect to:

http://connect.arc.nasa.gov/uwseminar/

If you are having problems connecting, you can try joining http://connect.arc.nasa.gov/uwseminar/?launcher=false, or rebooting your computer, or try joining from another network.

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Comment by Mike Toillion on October 14, 2014 at 3:28pm

This is indeed happening now!  Click this link to join as a guest:

http://connect.arc.nasa.gov/uwseminar

Comment by Miss Tardigrade on October 14, 2014 at 3:02pm

I thought this was now, but maybe I got the time wrong (I live in Sweden). Shame, this topic really interests me! 

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