The Universe is home to a lot of stars

The Universe is home to a lot of stars. That is, by the way, one of those enormous understatements. Research over the past decade has shown that, perhaps at least (!) 50 percent of those stars harbor planets. Estimates say that there are 1 trillion* planets in the Milky Way, our local galaxy, alone… What says the probability about that Earth would be the only populated planet in the galaxy? Or the Universe? Think about it…

*) A trillion means 12 zeros: or in other words, one million millions… (That is one gigantic heap of planets. A million millions…). And still, bear in mind that researchers have found even more galaxies so far, looking out in the wast space of the Universe, than they have found stars in our own galaxy.

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