What a great question! The universe exists because you know it does.

As John Nawrocki posted: Astronomers estimate that are 10^22 to 10^24 stars in the universe. Now, our star (the Sun) has 8 planets... Thanks to whoever killed Pluto... I still miss old Pluto... We could make a guess that on average every star has two planets, but really there's no way with current technology to … Read more

I have been fascinated with this for years, and still don't have any solid answers about these markings. Much of it is a mystery to me too! I just started a new blog a week ago that is completely dedicated to marked bills. Please stop by at markedbills(dot!)com and say hi! We'll get to the … Read more