Thursday, January 12, 2012

100 Billion Planets in our Galaxy

Astronomers have calculated how many planets there are per star on average in our galaxy. Since there is an average of one planet per star throughout our galaxy and since we already know that there are about 100 billion stars in our galaxy, this means that there is approximately 100 billion planets in our galaxy. So, the probability of life is high on some of the other 100 billion planets in our galaxy.

    1. Jet Propulsion Laboratory‎ - 11 hours ago
      The average number of planets per star is greater than one. Image credit: NASA/ESA/ESO Our Milky Way galaxy contains a minimum of 100 billion planets, ...
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  1. Study Shows Our Galaxy Has at Least 100 Billion Planets - NASA ...

    www.jpl.nasa.gov/news/news.cfm?release=2012-010
    11 hours ago – Our Milky Way galaxy contains, on average, a minimum of one planet for every star, according to a new statistical study.

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