Pluto: Pariah, Planet or Just Pretty Cool?
One minute it's a planet, the next minute it isn't. Are you up-to-date on planetary pop culture? Take this quiz and find out!
Which of these is NOT an argument for why Pluto is not a planet?
- It's an asteroid that visited the solar system, never left and took up residence in orbit of the sun.
- It's actually a moon that escaped the planet Jupiter's orbit.
- It doesn't have its own moon.
How many years did it take NASA's New Horizons spacecraft to reach Pluto for its first-ever photo shoot?
- One year
- 9 years
- 20 years
What common Earthly object is roughly the same size as the New Horizons spacecraft?
- a school bus
- a baby grand piano
- a refrigerator
True or false: Gravity exists on Pluto.
- Data so far is inconclusive.
Whose ashes were included in the New Horizon mission?
- Neil Armstrong
- Clyde W. Tombaugh
- Carl Sagan
True or false: Pluto and its moons are all by their lonesomes at the end of the Milky Way.
- True: Their closest neighbor is Neptune.
- False: Many other icy bodies are nearby.
- Neither true nor false. Pluto is constantly moving.
What might Pluto be hiding beneath its icy surface?
- an ocean
- long-collapsed mountain ranges
- a gaseous core
What discovery caused astronomers to rethink Pluto's planetary status?
- It started drifting ever so slightly out of the sun's orbit.
- Its moon is so similar in size to Pluto that experts began to doubt what was orbiting what.
- Numerous other similar-sized dwarf planets and bodies were discovered in the Kuiper Belt.
How many Earth years does it take for Pluto to orbit the sun?
True or false: Pluto isn't always the most distant from the sun of the nine traditional planets.
- We haven't been studying the planets long enough to know.