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Quiz about Order the Planets and Other Heavenly Bodies
Quiz about Order the Planets and Other Heavenly Bodies

Order the Planets (and Other Heavenly Bodies) Quiz


Order the heavenly bodies, based on when they were first officially discovered, from earliest to the most recent.

An ordering quiz by Joepetz. Estimated time: 3 mins.
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Author
Joepetz
Time
3 mins
Type
Order Quiz
Quiz #
413,386
Updated
Aug 24 23
# Qns
10
Difficulty
Average
Avg Score
6 / 10
Plays
258
Last 3 plays: bradncarol (6/10), joecali (5/10), ChefMcGee (6/10).
Mobile instructions: Press on an answer on the right. Then, press on the question it matches on the left.
(a) Drag-and-drop from the right to the left, or (b) click on a right side answer, and then click on its destination box to move it.
What's the Correct Order?Choices
1.   
(Beginning of Time)
Titan
2.   
(1534 BCE (at the latest))
Triton
3.   
(964)
Uranus
4.   
(1655)
Phobos
5.   
(1690)
Pluto
6.   
(1846)
Kuiper Belt
7.   
(1846)
Mars
8.   
(1877)
Earth
9.   
(1930)
Neptune
10.   
(1992)
Andromeda galaxy





Most Recent Scores
Apr 13 2024 : bradncarol: 6/10
Apr 09 2024 : joecali: 5/10
Mar 29 2024 : ChefMcGee: 6/10
Mar 23 2024 : Guest 77: 6/10
Mar 17 2024 : GoodwinPD: 10/10
Mar 17 2024 : malama: 7/10
Mar 13 2024 : Guest 180: 6/10
Mar 12 2024 : AndySed: 8/10
Mar 11 2024 : cunnusadeset: 4/10

Quiz Answer Key and Fun Facts
1. Earth

The existence of Earth has been known since the dawn of civilization. It is the home planet of life in the Milky Way Galaxy and from which all other heavenly bodies have been discovered. It is the only known planet in the Solar System, if not the universe, capable of sustaining life on a large scale.
2. Mars

The exact date of the discovery of Mars is unknown but it was for sure documented by 1534 BCE which is the year ancient Egyptians noted that Mars seemed to wander in the sky. Its existence was certainly known before then although an exact date cannot be pinpointed.
3. Andromeda galaxy

The Andromeda galaxy was first documented in 964 by Persian astronomer Abd al-Rahman al-Sufi who described it as a nebula. It was not until centuries later in 1755 that astronomers suspected Andromeda might be a separate galaxy. The debate on this issue went on for over a century.
4. Titan

Titan, Saturn's largest moon, was discovered on March 25, 1655 by Christiaan Huygens. Huygens discovered Titan while he was experimenting with improving his telescope's technology. It was the first moon of Saturn to be discovered and the first outside of Earth and Jupiter.
5. Uranus

The first known recording of Uranus came in 1690 when John Flamsteed first observed it. However, he mistakenly thought it was a star. In 1781, William Herschel was better able to observe Uranus. However, he mistook it for a comet until Anders Johan Lexell noted its orbit.
6. Neptune

Neptune was discovered in 1846 when Johann Gottfried Galle noticed an unusual occurrence in the orbit of Uranus that indicated, to him, another planet existed beyond Uranus. Prior to this, there was speculation that Neptune had been observed by Galileo over two centuries earlier.

However, this could not be confirmed because Galileo's observations as recorded do not seem to describe a planet.
7. Triton

Triton, the largest moon of Neptune, was discovered just seventeen days after Neptune, an extremely quick discovery compared to other planets' moons. British astronomer, William Lassell, immediately began searching for moons once the discovery of Neptune was announced.

He discovered Triton on October, 10 1846. Lassell also recorded discovering rings, although this appears to be incorrect. Neptune does have rings but not in the way Lassell described them nor is it believed the technology existed in Lassell's time to have seen the rings.
8. Phobos

Phobos, the largest moon of Mars, was not discovered until much later in time - well after the discovery of much further away heavenly bodies. Prior to the discover of both of Mars' moons, Phobos and Deimos, in 1877, it was widely speculated that Mars had two moons because Earth had one and Jupiter had four. "Gulliver's Travels", written in 1726, explicitly refers to two moons of Mars.

The reason it took so long to discover Mars' moons is that they are very small in size compared to other moons and orbit very close to Mars.
9. Pluto

Pluto was discovered in 1930 by Clyde Tombaugh, who resumed the search for so-called Planet X after the death of Percival Lowell who funded much of the search. In 2006, Pluto was infamously demoted from a planet to a dwarf planet after new criteria were established on what constitutes a planet.
10. Kuiper Belt

The Kuiper Belt is a rough ring of stars and other bodies located beyond Pluto. Its existence had long been speculated about but it was confirmed in 1992 when the minor planet Albion was discovered. Since then, the definition of the Kuiper Belt has expanded (though not universally so) to include bodies such as Pluto and Charon.
Source: Author Joepetz

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