The Voyager 1 spacecraft is 11 billion miles from the sun. And every minute, it gets 636 miles closer to its destination: the frontier of interstellar space. (npr.org)

636 miles per minute. 38 THOUSAND miles per hour. What an amazing thing and it is not even the fasted man-made object. That record goes to the Helios probes at 157,000 miles per hour.