"I'm wondering if there has been any life discovered on Earth that is not DNA based (life that has evolved in extreme environments, for example). "
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Seminar Detail
From Carbon Planets to Water Planets: The Composition of
Low-mass Extrasolar Planets
Presenter: Marc Kuchner
January 30, 2007 02:30 PM Pacific
A new extrasolar planet is discovered with mass comparable to that
of the Earth. Is it made mostly of silicates like the Earth? Not necessarily.
I will discuss some other strange possibilities: low-mass planets made mostly
from water, iron, carbon compounds, etc. I'll describe how these possibilities
fit into our current picture of planet formation and suggest how we can
recognize them with upcoming planet search tools.Participation Instructions
POLYCOM
RSVP to Marco Boldt (Marco.Boldt@nasa.gov) and connect to WebEx as instructed below. If you need Polycom help during the live event, call the videoconferencing help-desk at (650) 604-6412
WebEx
The slides from the seminar can be accessed real-time using WebEx at:
https://nasa.webex.com
Enter the meeting number: 928 461 025 Hit the "join now" button.
Enter your name or site name (this is not an assigned log-in name, please use your institution name or your first and last name), email and the password: kuchner123* (case sensitive)
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Without a Polycom...
1) You can watch the Realplayer webcast at: http://vanseg-1.arc.nasa.gov/2007/AB070130-01.ram and view the slides in WebEx (see WebEx instructions above) There is a 30 second delay for the webcast, so you will need to control the slides manually using the arrow buttons in WebEx. Questions for the speaker can be posted in the WebEx chat area to be answered at the end of the talk. Do not try to watch the Realplayer webcast at the same time as the Polycom or the phone. Due to the delay in the webcast, it will sound awful, unless you like dissonance.December 21, 2007
