space quiz

Here's a little trivia for you:
#1 What are Russian astronauts called?
#2 Which of the space shuttles is the oldest?
#3 When did Neil Armstrong land on the moon?
#4 Are all of the planets solid?
#5 Why is Pluto no longer considered a planet?
#6 Does Mars have any water (frozen or liquid)?
#7 Who invented the telescope?
#8 Name all of the NASA space shuttles.
#9 Do you have to have military experience to become an astronaut?
#10 Which planet is closest to the sun?

I'll come back in a few days and give the answers.