Astronomy & Space · Unit 13

Space Missions

The space race, Apollo, probes, space stations and Mars rovers

Spaceflight history is mostly political history with engineering attached: the fastest progress happened when two governments were competing and slowed sharply when they stopped.

The unit covers the space race, Apollo, robotic probes to the outer planets, space stations, and the sequence of Mars rovers.

This unit breaks down into 21 short steps and 120 questions, starting at difficulty 3 and building to 4. Below you can see exactly what it covers, how the path is structured, and worked examples with explanations.

Steps: 21
Questions: 120
Difficulty: 3-4

What this unit covers

Robotic Probes
The Apollo Program
Space Stations
Exploring Mars
The Space Race

Where this fits

Follows Rockets and Astronauts. Connects to History's The Cold War.

Where people slip

Robotic missions have returned far more science than crewed ones, for a fraction of the cost and risk. The case for sending people is real but it is not primarily a scientific case.

How the unit is structured

Space Missions runs as 21 short steps that unlock in order. 15 are practice rounds and 6 are challenge rounds that pull together everything before them. Questions start at difficulty 3 and climb to 4 as you progress.

Step 1 · easierStep 21 · harder

Challenge rounds

Example questions

30 real questions from this unit, with the answer and the reason behind it, grouped by what they practise. There are 120 in the unit altogether.

Exploring Mars

Build the sentenceLevel 3
1. Build a true sentence about a famous Mars rover.
Answer: Perseverance is a rover exploring Mars
Perseverance has explored the surface of Mars since 2021.
Fact or fibLevel 3
2. A rover named Perseverance landed on Mars in 2021.
Answer: True
NASA's Perseverance rover touched down in Jezero Crater in February 2021.
Fill the blankLevel 3
3. The tiny helicopter that flew on Mars is named ____.
- Ingenuitycorrect
- Sojourner
- Opportunity
- Spirit
Ingenuity made the first powered, controlled flight on another planet in 2021.
Multiple choiceLevel 3
4. Which of these is a Mars rover?
- Curiositycorrect
- Cassini
- Voyager
- Sputnik
Curiosity is a NASA rover that has explored the surface of Mars since 2012.
Choose all that applyLevel 4
5. Which of these are NASA Mars rovers?
- Curiositycorrect
- Perseverancecorrect
- Opportunitycorrect
- Cassini
Curiosity, Perseverance and Opportunity are Mars rovers; Cassini studied Saturn.
Match the pairsLevel 4
6. Match each Mars mission to the first it achieved.
Answer: Sojourner = First Mars rover; Ingenuity = First Mars helicopter; Viking 1 = First successful Mars lander
Each of these missions achieved a Mars first.

Robotic Probes

Build the sentenceLevel 3
7. Build a true sentence about the most distant spacecraft.
Answer: Voyager 1 is the farthest spacecraft from Earth
Voyager 1 has traveled farther from Earth than any other spacecraft.
Choose all that applyLevel 3
8. Which of these are robotic space probes?
- Voyager 2correct
- Cassinicorrect
- New Horizonscorrect
- Skylab
Voyager 2, Cassini and New Horizons are all probes; Skylab was a space station.
Fact or fibLevel 3
9. Voyager 2 is the only spacecraft to have flown past all four giant planets.
Answer: True
Voyager 2 visited Jupiter, Saturn, Uranus and Neptune.
Fill the blankLevel 3
10. The ____ probes, launched in 1977, are now traveling beyond the planets.
- Voyagercorrect
- Apollo
- Gemini
- Mercury
Voyager 1 and 2 left the planets behind and are exploring interstellar space.
Multiple choiceLevel 3
11. Which spacecraft is the farthest human-made object from Earth?
- Voyager 1correct
- Cassini
- New Horizons
- Hubble
Voyager 1, launched in 1977, has traveled into interstellar space and is the most distant human-made object.
Match the pairsLevel 4
12. Match each probe to the place it explored.
Answer: Cassini = Saturn; New Horizons = Pluto; Parker Solar Probe = The Sun
Each probe was sent to study a different part of the Solar System.

Space Stations

Build the sentenceLevel 3
13. Build a true sentence about the ISS orbit.
Answer: The ISS orbits about 400 km above Earth
The International Space Station orbits in low Earth orbit, roughly 400 km up.
Choose all that applyLevel 3
14. Which of these have been space stations?
- Mircorrect
- Skylabcorrect
- Tiangongcorrect
- Voyager
Mir, Skylab and Tiangong are all space stations; Voyager is a deep-space probe.
Fact or fibLevel 3
15. The ISS has been visited by astronauts from only one country.
Answer: False
The ISS is a partnership of many nations, including the US, Russia, Europe, Japan and Canada.
Fill the blankLevel 3
16. China's own space station is called ____.
- Tiangongcorrect
- Skylab
- Mir
- Salyut
Tiangong is China's space station, assembled in orbit in the early 2020s.
Multiple choiceLevel 3
17. What does ISS stand for?
- International Space Stationcorrect
- Interstellar Science Ship
- Integrated Satellite System
- Independent Solar Station
The ISS is the International Space Station, a large habitable satellite orbiting Earth.
Match the pairsLevel 4
18. Match each space station to the nation that built it.
Answer: Skylab = United States; Mir = Soviet Union; Tiangong = China
Each space station was built and run by a different nation.

The Apollo Program

Fact or fibLevel 3
19. Apollo 13 successfully landed on the Moon.
Answer: False
Apollo 13 suffered an explosion on the way and returned safely without landing.
Fill the blankLevel 3
20. The Apollo missions were launched using the powerful ____ rocket.
- Saturn Vcorrect
- Falcon 9
- Soyuz
- Titan II
The giant Saturn V rocket carried Apollo astronauts toward the Moon.
Guess the numberLevel 3
21. How many Apollo missions successfully landed astronauts on the Moon?
Answer: 6 missions
Six Apollo missions landed crews on the Moon between 1969 and 1972.
Match the pairsLevel 3
22. Match each Apollo 11 astronaut to their role.
Answer: Neil Armstrong = First to walk on the Moon; Buzz Aldrin = Second to walk on the Moon; Michael Collins = Stayed in the command module
Armstrong and Aldrin walked on the Moon while Collins orbited above in the command module.
Build the sentenceLevel 4
23. Build a true sentence about the first Moon landing.
Answer: Apollo 11 landed the first humans on the Moon
Apollo 11 carried the first humans to the surface of the Moon in 1969.
Choose all that applyLevel 4
24. Which astronauts walked on the Moon during Apollo 11?
- Neil Armstrongcorrect
- Buzz Aldrincorrect
- Michael Collins
- Jim Lovell
Armstrong and Aldrin walked on the Moon while Collins stayed in orbit.

The Space Race

Build the sentenceLevel 3
25. Build a true sentence about the first person in space.
Answer: Yuri Gagarin was the first human in space
Yuri Gagarin was the first human to reach space, in 1961.
Choose all that applyLevel 3
26. Which of these firsts were achieved by the Soviet Union?
- First satellite in orbitcorrect
- First human in spacecorrect
- First person on the Moon
- First reusable rocket
The USSR launched the first satellite and the first human; the US landed the first people on the Moon.
Fill the blankLevel 3
27. The first artificial satellite, ____, was launched in 1957.
- Sputnik 1correct
- Explorer 1
- Apollo 1
- Vostok 1
Sputnik 1 was the Soviet Union's first satellite and the first ever launched.
Guess the numberLevel 3
28. In which year was Sputnik 1, the first satellite, launched?
Answer: 1957 year
Sputnik 1 launched on October 4, 1957.
Match the pairsLevel 3
29. Match each cosmonaut to the first they achieved.
Answer: Yuri Gagarin = First human in space; Valentina Tereshkova = First woman in space; Alexei Leonov = First spacewalk
These Soviet cosmonauts each achieved a famous first in the early space race.
Fact or fibLevel 4
30. The dog Laika was launched aboard Sputnik 2 in 1957.
Answer: True
Laika became one of the first animals to orbit Earth, on Sputnik 2.

Where these questions come from. Each unit starts as a plan of the concepts it should cover and the difficulty it should span. Questions are written against that plan with AI assistance, then checked by a validator that rejects anything without a single defensible answer, an explanation, or plausible wrong options. How we write questions sets out the whole process, and corrections are fixed in the bank and reach the site and the app the same day.

How you practise

This unit mixes 14 different question formats, so you are recalling and applying rather than recognising the same layout every time.

Build the sentence
Choose all that apply
Fact or fib
Fill the blank
Guess the number
Match the pairs
Multiple choice
Odd one out
Picture question
Put in order
Sort into groups
Spell it
True or false
Type the answer

Practise Space Missions

120 questions across 21 steps. Start with step one and crawl at your own pace.

Play this unit

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