Bing Quiz Archive
Astronomy Quiz Archive
Archived edition • Originally published August 19, 2026
Test your knowledge of astronomy, from planets and stars to galaxies, space distances, planetary motion, and some of the most fascinating objects in our universe.
🌌🔭🪐 August 19 Astronomy Quiz • 10 Questions • ⏱️ 150 Seconds
🪐 Planets
⭐ Stars & Light
🌌 Galaxies
🚀 Space Science
⏱️ Time: 150s
✅ Answered: 0/10
This August 19 archive remains fully playable. Answer choices and their A–D labels reshuffle whenever the page loads, and the 150-second timer begins after your first answer.
1
Which planet completes one orbit around the Sun in the shortest amount of time?
Correct answer: Mercury. Mercury is the closest planet to the Sun and completes an orbit in about 88 Earth days.Its short year is a result of both its small orbital path and its high orbital speed.
2
Which planet has the highest average surface temperature in our solar system?
Correct answer: Venus. Although Mercury is closer to the Sun, Venus is hotter because its dense carbon-dioxide atmosphere traps heat through an extreme greenhouse effect.Venus has an average surface temperature of roughly 465°C (869°F), hot enough to melt lead.
3
Olympus Mons, the largest known volcano in the solar system, is located on which planet?
Correct answer: Mars. Olympus Mons is a giant shield volcano on Mars and rises far above the surrounding plains.Its immense size was possible partly because Mars lacks active plate tectonics like Earth's.
4
What is Jupiter's Great Red Spot?
Correct answer: A long-lived storm. The Great Red Spot is a huge atmospheric storm in Jupiter's southern hemisphere.Astronomers have observed the storm for centuries, although its size and appearance change over time.
5
Which statement about Saturn is true?
Correct answer: Its average density is lower than water. Saturn's average density is about 0.69 grams per cubic centimeter, making it the least dense planet.The familiar idea that Saturn could float in water is a density comparison; no ocean large enough to hold the planet exists.
6
Which planet rotates with an extreme axial tilt, making it appear to spin almost on its side?
Correct answer: Uranus. Its rotational axis is tilted by about 98 degrees relative to its orbit around the Sun.This unusual orientation produces extreme seasonal patterns that last for many Earth years.
7
What does a light-year measure?
Correct answer: Distance. A light-year is the distance light travels through a vacuum in one year.One light-year is about 9.46 trillion kilometers, or roughly 5.88 trillion miles.
8
What type of galaxy is the Milky Way?
Correct answer: Spiral galaxy with a central bar. The Milky Way is classified as a barred spiral galaxy, with spiral arms extending from a central bar-shaped region.Our solar system lies in the Orion Spur, a smaller structure between two of the Milky Way's major spiral arms.
9
Which star is the closest known star to the Sun?
Correct answer: Proxima Centauri. It is the nearest known star to the Sun, a little more than four light-years away.Proxima Centauri is part of the Alpha Centauri star system and is a small red dwarf.
10
What is a supernova?
Correct answer: A powerful stellar explosion. A supernova is an extremely energetic stellar explosion that can occur through more than one physical pathway.Some supernovae mark the deaths of massive stars, while others involve white dwarfs in binary systems.