| When Deep space 1 flew past asteroid Braille on July 29, 1999, both the spacecraft and asteroid were about 188 million kilometers from Earth! How far is that? |
| If you had a piece of yarn that long, it would weigh 80 million kilograms (about 88,000 tons), or about as much as 40 fully fueled space shuttles. |
Dr. Marc sometimes thinks of great distances in terms of balls of yarn! |
| That's more than enough yarn to make sweaters for every person in the United States! |
| If you made a ball of that much yarn, it would be 100 meters (330 feet) high. That's as tall as a 32-story building or over twice the height of the Statue of Liberty! |
 |
