1. Planet with most-tilted axis that seems to spin on its side   Hint First letter clue   2. Brightest planet as viewed from the Earth   First letter clue   3. Most dense planet of our solar system   First letter clue   4. Planet with fastest orbiting speed around the Sun   First letter clue   5. Least dense planet of our solar system   First letter clue   6. Planet, besides Jupiter, that has storms as revealed by dark spots   First letter clue   7. Smallest planet of our solar system   First letter clue