One year ago today, the Curiosity rover began to (slowly, slowly) explore Mars.
It cost around $2.5 billion to send Curiosity to Mars. That’s kind of a bargain if you consider that a line of dollars, laid end-to-end from Earth to Mars, would add up to $1.6 trillion.
Learn about this and other fun calculations done with the dollar on our blog.
Woo! The Mars rover successfully landed! Learn more about Curiosity and past rovers on our blog.