Do you mean like UFOs visiting the planet, or just somewhere, out there, in the vast universe? If it's the latter, just assume it's true. Hundreds of billions of galaxies, each on average with hundreds of billions of stars, existing for billions of years.
chrimony 0 points 4 years ago
Do you mean like UFOs visiting the planet, or just somewhere, out there, in the vast universe? If it's the latter, just assume it's true. Hundreds of billions of galaxies, each on average with hundreds of billions of stars, existing for billions of years.