Questions in this quiz: Voyager and Pioneer Probes

NASA's outer-system explorers. Pioneer 10/11's Jupiter and Saturn passes, Voyager 1's solar-system exit, Voyager 2's unique Uranus and Neptune flybys, the Pioneer plaque, the Voyager Golden Record.

1. Voyager 2 remains the only spacecraft to have flown by Uranus and Neptune. In what year did its Neptune encounter occur? — Options: 1986, 1989, 1992, 1995
2. The Pioneer plaque depicts a hydrogen atom undergoing a hyperfine transition. What does this diagram primarily provide to any finder? — Options: A chemical formula for water, A universal unit of length and time, The atomic number of the Sun's primary fuel, A map of Earth's magnetic field
3. Which spacecraft was the first to traverse the asteroid belt and the first to make a close approach to Jupiter? — Options: Pioneer 10, Pioneer 11, Voyager 1, Mariner 10
4. Voyager 1's trajectory was bent sharply out of the ecliptic plane during its encounter with which body? — Options: Jupiter, Io, Titan, Saturn's rings
5. The Voyager Golden Record opens its musical section with a piece by which composer? — Options: Wolfgang Amadeus Mozart, Ludwig van Beethoven, Johann Sebastian Bach, Igor Stravinsky
6. NASA announced that Voyager 1 had crossed the heliopause into interstellar space in 2013. In which year did the crossing actually occur, according to the plasma data? — Options: 2010, 2011, 2012, 2013
7. Which spacecraft made the first close flyby of Saturn, in September 1979? — Options: Pioneer 10, Pioneer 11, Voyager 1, Voyager 2