Many of us remember watching the space age unfold, from the first satellite to the Moon landing. Today’s nine questions travel from our neighboring planets to the astronauts and telescopes that explored them.
Which planet is the largest in our solar system?
What gives Mars its reddish color?
Which planet has an average density lower than water's, so it could in theory float in a bathtub?
In 1957 the Soviet Union launched Sputnik 1. What was it?
Who became the first American in space, in 1961?
In what year did astronauts first land on the Moon?
Who was the first American woman in space, flying aboard Space Shuttle Challenger in 1983?
The Hubble Space Telescope was carried into orbit in 1990 aboard which spacecraft?
How many moons does Mars have?
New puzzles every day. Try another one »
How to Play
- Tap the answer you think is right for each question.
- Tap Check to see whether you are correct and read a short explanation.
- Tap Hint if you would like a nudge, or Show answer to reveal it.
- Your progress is saved on this device.
Fun Fact to Take With You
Saturn is so light for its size that its average density is lower than water’s. It is a good example of how the planets surprise us, even after decades of exploration.