Planets & Space Quiz
Look at the space image and choose the correct planet or celestial body. Get 10 right to win!
Level
1
Rookie
Points
0
Combo
x1
Goal
0/10
Planets & Space Quiz – Identify Solar System Bodies
The Planets & Space Quiz tests your ability to identify celestial bodies from real photographs taken by NASA spacecraft, space telescopes, and planetary probes. From the scorched surface of Mercury to the icy plains of Pluto, each image is a genuine photo of our solar system.
How the quiz works
Each round shows you a real photograph of a planet, moon, or other solar system body. Choose the correct name from four options. Build a streak for bonus points, but three wrong answers ends the game. Identify 10 celestial bodies correctly to win.
The quiz covers 13 solar system bodies:
| Body | Type | Fun fact |
|---|---|---|
| Mercury | Planet | Smallest planet; extreme temperature swings |
| Venus | Planet | Hottest planet despite not being closest to the Sun |
| Earth | Planet | Only known planet with liquid surface water |
| Mars | Planet | Has the tallest volcano in the solar system (Olympus Mons) |
| Jupiter | Planet | Largest planet; Great Red Spot is a storm older than 350 years |
| Saturn | Planet | Ring system visible from Earth; least dense planet |
| Uranus | Planet | Rotates on its side (98° axial tilt) |
| Neptune | Planet | Strongest winds in the solar system (~2,100 km/h) |
| The Moon | Moon | Earth's natural satellite; stabilizes Earth's axial tilt |
| Pluto | Dwarf planet | Reclassified in 2006; has a heart-shaped nitrogen ice plain |
| The Sun | Star | Contains 99.86% of all mass in the solar system |
| Europa | Moon of Jupiter | Ocean of liquid water beneath ice crust; candidate for extraterrestrial life |
| Io | Moon of Jupiter | Most volcanically active body in the solar system |
Why space identification is harder than it looks
Earth, Mars, Jupiter, and Saturn are often identifiable by color and distinctive features (Mars' red hue, Saturn's rings). However, the ice giants Uranus and Neptune look deceptively similar in photographs — both appear pale blue-green. Likewise, many moons share a uniform, cratered gray appearance. Success requires noticing subtle details like surface texture, cloud patterns, and ring systems.
How these images were captured
The photographs used in this quiz come from some of the most remarkable space missions in history:
- Mercury: MESSENGER spacecraft (2011–2015)
- Venus: Mariner 10 (1974) and Pioneer Venus Orbiter
- Earth: Apollo 17 "Blue Marble" (1972) — one of the most reproduced photographs ever
- Mars: ESA's OSIRIS instrument on Rosetta (2007)
- Jupiter: Hubble Space Telescope (2019)
- Saturn: Cassini spacecraft during Saturn's equinox (2009)
- Uranus and Neptune: Voyager 2 (1986 and 1989)
- Moon: Various Earth-based and orbital telescopes
- Pluto: New Horizons spacecraft (2015) — the first close-up images ever
- Europa and Io: Galileo spacecraft (1990s)
Frequently Asked Questions
Is Pluto included in the quiz?
Yes. Pluto is in the quiz as a dwarf planet. It was reclassified from planet to dwarf planet by the International Astronomical Union in 2006.
Are the images real photographs?
Yes. All images are genuine photographs from NASA spacecraft and space telescopes, sourced from Wikimedia Commons.
How do I tell Uranus from Neptune?
Both are pale blue-green, but Uranus appears slightly greener and more featureless, while Neptune shows more visible cloud bands and a slightly deeper blue.
Why is the Sun included?
The Sun is the central body of our solar system and makes for an interesting quiz item since many people have never seen a close-up solar image with solar flares visible.
How many planets does the solar system have?
There are 8 officially recognized planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto was demoted to dwarf planet status in 2006.
Related Quizzes
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- Car Logos Quiz — Identify car brands from their logos
- Flag Game — Identify countries by their flags
- World Capitals Quiz — Match capital cities to countries
- Military Insignia Quiz — Identify U.S. Army ranks
Sources
- NASA Solar System Exploration — Official planetary science data
- NASA New Horizons — Pluto mission
- IAU Planet Definition — Why Pluto was reclassified
- Wikimedia Commons – Solar System — Source of public domain space images