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Drake equation


The Drake equation is a probabilistic argument used to arrive at an estimate of the number of ..... N = the number of planets with detectable signs of life: N* = the number of .... It is also possib...

Life in the Universe - Stephen Hawking


Two questions I shall discuss are, 'What is the probability of life existing else ..... Other planets in the galaxy, on which life has developed, may not have had a ...

What are the odds aliens exist? | Science Wire | EarthSky


Feb 3, 2016 ... On how many potentially habitable planets does life actually arise? .... doubt there are planets enough like Earth in a high percentage of other ...

Universe Has Probably Hosted Many Alien Civilizations: Study


May 5, 2016 ... Other planets throughout the universe probably hosted intelligent life long ... The probability of a civilization developing on a potentially habitable alien planet would ... Do you believe alien life exists elsewhere in the universe?

Ignoring 500 Billion Galaxies: Mathematics vs Common Sense in the ...


Feb 23, 2012 ... ... Sense in the Debate About the Probability of Extraterrestrial Life ... that basing our expectations of life existing on other planets, for no better ...

What are the odds there is life in outer space? | HowStuffWorks


The discovery was good news for the possibility of life elsewhere in the universe. ... Then, in 1995, astronomers located the first planets outside our solar system. ... of their existence, such as heat or light or some other electromagnetic offal?

The Possibility of Alien Life Is Now (Almost) Impossible to Deny


Jan 12, 2012 ... The Possibility of Alien Life Is Now (Almost) Impossible to Deny ..... edit: And I didn't say this is proof that there are other planets with life. It's just ...

A New Equation Reveals Our Exact Odds of Finding Alien Life - io9


Jun 21, 2013 ... Assessing the Probability of Intelligent Life ... Indeed, Seager's N represents the number of planets with detectable biosignature gases. ... In other words, spectroscopic imaging — the process of splitting the light up from a ...

The Search for Life in the Universe -- NASA Astrobiology Magazine ...


Jun 30, 2003 ... Indeed, most astrophysicists accept a high probability of there being life elsewhere in the universe, if not on other planets or on moons within ...

Scientists debate likelihood of finding life on other planets


Feb 1, 2016 ... Scientists debate likelihood of finding life on other planets ... In addition to the possibility of false positives on biosignatures and the unlikelihood ...

Astronomers are now able to detect planets orbiting stars other than the Sun where life may exist, and living generations could see the signatures of extra-terrestrial life being detected.
A new microorganism recently discovered by NASA, which is able to thrive and reproduce using the toxic chemical arsenic, gives more plausibility to the theory that other planets might sustain life. More >>