| Mars - A Not So Distant Journey |
 |
 |
 |
 |
| 1. Fourth planet from the sun 2. Average distance from Sun � 142 million miles 3. Average speed to orbit the sun � 14.5 miles per second 4. Diameter of Mars � 4,220 miles or about 6,786 km. 5. Tilt of Axis � 25 degrees 6. Length of year � 687 Earth Days, 669 Mars Days 7. Length of each day � about 24 hours and 37 minutes 8. Gravity - .375 that of Earth- 0.38 g 9. Temperature � from �180 degrees F in winter. Average �81 degrees F 10. Atmosphere � thin with 95% carbon dioxide and some nitrogen and argon. 11. Moons � two: Phobos and Deimos 12. Mass � 0.1074 Earth-mass 13. Has mountains, valleys, polar ice caps and dry river beds 14. Has seasons 15. Density and atmospheric pressure � about 100 times Earth�s 16. Ferric oxide � rusty iron- gives Mars its red color 17. Valles Marineris is a huge canyon covering nearly 4,000 km. in length 18. Dust storms are found, particularly near the poles |
 |
 |
| Hercules MPT |