Statistic of the day

Given that there are an estimated 100bn sunlike stars in our Milky Way galaxy and 100bn galaxies in the known universe, the potential number of Earth-like planets is a humbling 10 to the power of 22.

From the FT’s look at the Kepler space telescope and current work on exo-biology.

10^22 is a truly large number. If you’re only now getting your head around 1 trillion (as in stimulus), that’s only 10^12.

2 thoughts on “Statistic of the day

  1. Lance Knobel

    That’s not saying there’s life on 10^22 planets, or even that there are 10^22 Earth-like planets. Merely that 10^22 is the potential number of Earth-like planets.


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