NASA estimates 1 in 6 stars have Earth-sized planets orbiting them

That is a lot of Earth-sized planets. A lot. For instance, look at what NASA estimates for our galaxy alone:

Since the Milky Way has about 100 billion stars, there are at least 17 billion Earth-sized worlds out there.

And then there are the countless billions of galaxies besides our own. I wonder if we’ll ever make it to even just one of them?