Alien Life

We reside during a remarkable time, an age when humanity is about to cross a threshold. We are about to leave the nest and meet alien life. This blog is dedicated to the science of astrobiology: understanding space, the field of our search; exploring the one example we have of life and its abode, our Earth; reaching for the stars; imagining what extraterrestrial life may be like; and encouraging science education. Please join me for daily updates on the ultimate human adventure.

Thursday, November 03, 2011

Potential habitability of nearby star Pollux

Potential habitability of nearby star Pollux Welcome! "Alien Life" tracks the latest discoveries and thoughts in the various elements of the famous Drake Equation. Here's today's news:
g Stars - What is the potential habitability of the nearby star Pollux? See article.
g Abodes - New data from the Rosetta probe indicates that the asteroid 21 Lutetia may have a molten, metallic core. See article.
g Life - A new study has detailed the potential mechanism behind bioluminesence in dinoflagellates. See article.

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The Drake Equation

This formula estimates the number of intelligent civilizations in our galaxy.

N=(R*)(Ns)(Fp)(Ne)(Fl)(Fi)(Fc)(L)

Where:

N = Number of civilizations we can communicate with
R* = Average star formation rate
Ns = Percentage of stars capable of supporting earth-like planets
Fp = Percentage of those stars with planets
Ne = Average umber of planets in those stars' habitable zones
Fl = Percentage of those planets where life begins
Fi = Percentage of planets with life where an intelligent species evolves
Fc = Percentage of those intelligent species that develop communication technology
L = Average lifetime, in years, of a civilization that develops such technology

Alien Life

Thursday, November 03, 2011

Potential habitability of nearby star Pollux

The Drake Equation

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