Monday, November 4, 2013 was Islamic New Year. It was also the day the journal “Proceedings of the National Academy of Science” published the results of calculations based on sun-like stars in our galaxy.
The estimate of the number of planets similar in size and temperature to Earth (what astronomers have dubbed the ‘Goldilocks Zone’ – not too hot, not too cold, but just right for life to evolve) was 8.8 Billion!
And that’s just our galaxy. The neighboring Andromeda Galaxy has an estimated 1 trillion stars. A recent German supercomputer simulation using information collected from the Hubble Space Telescope estimates there might be as many as 500 billion galaxies in the Universe, and as many as 4 Trillion “Goldilocks” Planets.
With that kind of odds, the chances that we’re alone in the universe are slim to none (and Slim’s out of town.)
Scientists estimate 8.8 billion planets ‘just right’ for life