Planetary Society Blog for Tuesday 8 July 2014

Planetary Society Blog

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The Habitable Zone of Inhabited Planets

Posted: 07 Jul 2014 01:14 PM PDT
http://www.planetary.org/blogs/guest...d-planets.html

A team of Columbian researchers are arguing for a new refinement to the
idea of the habitable zone that takes the presence of life itself into
account.

In article , sci-space-science-
says...

Planetary Society Blog

///////////////////////////////////////////
The Habitable Zone of Inhabited Planets

Posted: 07 Jul 2014 01:14 PM PDT
http://www.planetary.org/blogs/guest...d-planets.html

A team of Columbian researchers are arguing for a new refinement to the
idea of the habitable zone that takes the presence of life itself into
account.

Interesting, but at the same time we're extrapolating all of this, even
the Daisyworld "toy model" from what exists (or once existed) here on
earth.

Jeff
--
"the perennial claim that hypersonic airbreathing propulsion would
magically make space launch cheaper is nonsense -- LOX is much cheaper
than advanced airbreathing engines, and so are the tanks to put it in
and the extra thrust to carry it." - Henry Spencer