Of *course* rockets are fast, right? The speediest one carrying a person zoomed at over 4,000 miles an hour! But rockets ride very slowly on the ground. Since they have to fly millions of miles without making a mistake, they’re handled very gently so every part stays in place. Spacecraft are rolled from NASA’s Vehicle Assembly Building to the launchpad at just 2-3 miles an hour — slower than you can walk! We’re guessing rockets have more fun flying in the sky.

*Wee ones:* If a rocket rolls 2 miles an hour and you walk 1 mile an hour faster, how fast are you?

*Little kids:* If you flew at 4,000 miles per hour for a 2-hour playdate, how far would you fly? *Bonus:* The Endeavour stopped flying in 2012. How old were you then? (We’re in 2019 right now.)

*Big kids:* If the 78-foot-wide Endeavour rolled down a street 50 feet wide, by how many feet did the space shuttle stick out on each side (assuming it rolled right down the middle)? *Bonus:* If you flew the 25,000 miles around Earth at 4,000 miles per hour starting at 7:00 pm, would you land back home the same day you started?

Answers:

*Wee ones:* 3 miles an hour.

*Little kids:* 8,000 miles. *Bonus:* Different for everyone…that was 7 years ago, so subtract 7 from your age. If you’re younger than 7, you weren’t born yet!

*Big kids:* 14 feet on each side, since it’s 28 feet too wide and the two sides split that. *Bonus:* No, because In 6 hours you’ll travel 24,000 miles, which already takes you to 1:00 in the morning the next day. The last 1,000 miles take you just another 15 minutes (1/4 of an hour at 4,000 miles per hour).