Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
Moon Phase
CURRENT MOON

NOVA: Finding Life Beyond Earth -watch this!

View previous topic View next topic Go down

NOVA: Finding Life Beyond Earth -watch this!

Post  Jackie (Admin) on Mon Apr 29, 2013 2:46 pm


Maybe we will have to re-think what life is, or how it can be expressed. Maybe a sea of methane is quite comfortable for some fish?

"The answer lies in three key ingredients. First, all life is made up of organic molecules consisting of carbon, in compounds that include nitrogen, hydrogen and oxygen, among others. Although organic molecules aren't alive themselves, they are the basic building blocks of every living organism.

Life also needs a liquid, like water. In water, the basic organic molecules can mix, interact and become more complex.

The last ingredient is an energy source, like the sun, to power the chemical reactions that drive all life, from the smallest microbe to us.

When these three ingredients came together, billions of years ago, life found a way to take hold, and, today, persists, even in the most extreme environments, like here: this is the Mojave Desert, Nevada. It is one of the hottest, driest places on our planet."

This is a video with excellent graphics, and shows some newer ideas and data. Like a Star @ heaven


avatar
Jackie (Admin)
Admin

Posts : 444
Join date : 2011-05-13

http://signal.forumotion.com

Back to top Go down

Re: NOVA: Finding Life Beyond Earth -watch this!

Post  Jackie (Admin) on Mon Apr 29, 2013 2:49 pm


Here is a transcript of this show:

http://www.pbs.org/wgbh/nova/space/finding-life-beyond-earth.html
avatar
Jackie (Admin)
Admin

Posts : 444
Join date : 2011-05-13

http://signal.forumotion.com

Back to top Go down

View previous topic View next topic Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum