Easy
Space & Astronomy
Stars, Galaxies & Spaceflight
Beyond the planets: stars, distance and getting off the ground.
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Which galaxy contains our Solar System?
Space & Astronomy
Planets, stars and how we came to know any of it.
Astronomy is the oldest science and still the one that most reliably stops people in their tracks. This category covers the Solar System in the order it actually sits, the physics that keeps it arranged that way, and the missions that turned distant points of light into places with weather and geology. It also covers the units, because light-years and astronomical units confuse almost everyone the first time. The explanations connect each fact to the reason behind it, so the Solar System reads as a system rather than a list of names to memorise. Nothing here needs a telescope or any maths.
Difficulty mix
New to Space & Astronomy? Start here
Stars, Galaxies & Spaceflight
Beyond the planets: stars, distance and getting off the ground.
3 easy
2 medium
2 hard
6–9 min each
7 quizzes in Space & Astronomy
Easy
Space & Astronomy
The Planets, Properly
Ten questions on the eight planets, from the hottest surface to the one lying on its side.
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Which planet orbits closest to the Sun?
Easy
Space & Astronomy
The Moon, Up Close
Phases, tides, the far side and the slow retreat — ten questions on the nearest thing in the sky.
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What causes the phases of the Moon?
Hard
Space & Astronomy
How Stars Live and Die
Ten questions on what makes a star shine, what it turns into afterwards, and where your atoms came from.
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What process powers a star like the Sun?
Medium
Space & Astronomy
Space Race Firsts
Ten milestones from 1957 to 1981, from the first satellite to the first shuttle launch.
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What was the first artificial satellite to orbit Earth?
Medium
Space & Astronomy
Telescopes and How We Look
How astronomers actually see things, and why some telescopes sit in space or underground.
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A refracting telescope gathers light using what?
Hard
Space & Astronomy
Gravity, Orbits and Getting There
Why orbiting is falling, what escape velocity means, and how spacecraft actually travel.
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An object in orbit is best described as doing what?
Questions
About Space & Astronomy quizzes
How many Space & Astronomy quizzes are there?
7 published quizzes in this subject, 70 questions in total. Every one is researched, written and checked by hand.
How hard are they?
The mix here is 3 easy, 2 medium and 2 hard. Difficulty is about how obscure the answers are, not how fast you have to be — there is no timer on any quiz.
How long does one take?
About 7 minutes on average, ranging from 6 to 9. Playing every space & astronomy quiz would take roughly 1 hour.
Which one should I start with?
"Stars, Galaxies & Spaceflight" is the gentlest way in — 10 questions, about 6 minutes, rated easy.
Do I need an account?
No. Every quiz is free and playable straight away. An optional free account only saves your scores across devices.
Do you explain the answers?
Yes — every question has a short explanation of why the right answer is right, shown the moment you answer, whether you got it or not.