Planets
Which is the smallest planet?
Neil Armstrong
Who was the first man on the moon?
One moon
How many moons does Earth have?
Dark spots on the Sun
What are sun spots?
Venus
What is the hottest planet planet in the solar system?
Yuri Gagarin
Who was the first man in space?
The moon is only half lit up
What is a half moon?
Hydrogen and Helium
Neptune
What is the coldest planet in the solar system?
Who first created almanacs?
Phobos and Deimos
What are the names of the two moons of Mars?
28 times of Earth
What is the gravity like on the sun?
Jupiter
Which planet is the biggest?
Hans Lippershey
Jupiter's four biggest moons
What are the four Galilean moons?
Pioneers 6, 7, 8 and 9
First satellites to make detailed measurements of the sun's solar wind and magnetic fields?
Saturn
Which planets have the most moons?
Sputnik 1
What is the first spacecraft to be launched into space?
Io
Which moon has the most volcanoes?
G-Type
What type of star is the sun?