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Quiz: How Well Do You Know Space?

From the International Space Station to the edge of interstellar space, find out how much you know about our solar system and beyond.

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  1. 1. How many people can live on the ISS at any one time?

    en.wikipedia.org
    3
    4
    6
    Correct!
    Wrong!

    6.

    It can fit six people in total. You can see how many are up there right now.

  2. 2. Which inner solar system planet is biggest?

    Earth
    NASA
    Earth
    NASA
    Mars
    NASA
    Mars
    NASA
    Venus
    NASA
    Venus
    NASA
    Correct!
    Wrong!

    Earth.

  3. 3. How many moons does Pluto have?

    eso.org / /L. Calçada
    1
    5
    12
    Correct!
    Wrong!

    5.

    It might not be a planet anymore, but Pluto has more moons than Earth does.

  4. 4. How many planets are there in the solar system?

    8
    9
    10
    Correct!
    Wrong!

    8.

    Since Pluto was demoted to dwarf planet in 2006, there are only eight planets in the solar system.

  5. 5. Which planet is this storm happening on?

    jpl.nasa.gov
    Saturn
    Neptune
    Mars
    Correct!
    Wrong!

    Saturn.

    It's at Saturn's north pole, and has wind speeds of up to 330 miles per hour.

  6. 6. Which solar system planets have rings?

    NASA / JPL
    Saturn and Mars
    Saturn, Mercury and Venus
    Saturn, Jupiter, Uranus and Neptune
    Correct!
    Wrong!

    Saturn, Jupiter, Uranus and Neptune.

    All four gas giants have rings (but Saturn's are more noticeable than the others).

  7. 7. How hot is the surface of the Sun?

    Correct!
    Wrong!

    6000 Kelvin.

    The Sun's visible surface – the photosphere – is around 5778K, or around 5505°C.

  8. 8. What is the average temperature of the Sun's atmosphere?

    Luc Viatour / lucnix.be
    5500 Kelvin
    100,000–200,000 Kelvin
    1–2 million Kelvin
    Correct!
    Wrong!

    1–2 million Kelvin.

    Scientists don't understand why, but the Sun's corona is much hotter than its surface. Some regions even reach 20 million degrees.

  9. 9. Which planet is this?

    NASA
    Mars
    Earth
    Venus
    Correct!
    Wrong!

    Earth.

    It's a picture of the Australian outback, taken by Chris Hadfield from the International Space Station.

  10. 10. Which planet is this?

    NASA/JPL/University of Arizona
    Mars
    Earth
    Mercury
    Correct!
    Wrong!

    Mars.

    Turns out Mars has a lot more ice than we anticipated. And it looks a bit like a brain.

  11. 11. Which of these is not a body in the asteroid belt?

    Ceres
    Vesta
    Triton
    Correct!
    Wrong!

    Triton.

    Triton is actually a moon of Neptune. Vesta is an asteroid and Ceres is a dwarf planet that orbits in the asteroid belt.

  12. 12. Who was the first person in space?

    Neil Armstrong
    NASA
    Neil Armstrong
    NASA
    John Glenn
    United States Marine Corps
    John Glenn
    United States Marine Corps
    Correct!
    Wrong!

    Yuri Gagarin.

    He orbited Earth in his Vostok spacecraft on 12 April 1961.

  13. 13. When did the first frog reach space?

    Nasa/Wallops/Mid-Atlantic Regional Spaceport
    March 1961
    April 1977
    January 1984
    Correct!
    Wrong!

    March 1961.

    Frogs were included on the Vostok 3A launches into low Earth orbit in 1961. A previous attempt in 1959 had been made to send frogs to space, but the rocket was destroyed during launch.

  14. 14. Which of these is not a moon of Saturn?

    Enceladus
    Hyperion
    Io
    Correct!
    Wrong!

    Io.

    Io is a moon of Jupiter.

  15. 15. How long do we have until the Sun expands into a red giant?

    NASA / Via space.com
    1 million years
    5 billion years
    100 billion years
    Correct!
    Wrong!

    5 billion years.

    Hopefully enough time for us all to decamp somewhere that won't get fried during the expansion.

  16. 16. When did Voyager 1 reach interstellar space?

    NASA
    January 2010
    August 2012
    September 2013
    Correct!
    Wrong!

    August 2012.

    There have been various reports over the last few years of Voyager leaving the solar system. But definitive word came from Voyager project scientist Ed Stone and team recently when they announced that Voyager left the solar system on August 25, 2012.

  17. 17. Which exoplanet was discovered first?

    Correct!
    Wrong!

    51 Pegasi b.

    It was discovered in 1995. Fomalhaut b was discovered in 2008 and Alpha Centauri Bb in 2012.

  18. 18. How many stars are there in the Milky Way?

    Bruno Gilli/ESO
    100–400 billion
    1–4 billion
    100,000–400,000
    Correct!
    Wrong!

    100–400 billion.

  19. 19. How old is the universe?

    3.8 billion years
    10 billion years
    13.8 billion years
    Correct!
    Wrong!

    13.8 billion years.

    That's how long it's been since the Big Bang.

  20. 20. Which of these is the Orion Nebula?

    Correct!
    Wrong!

    The first is the Carina Nebula, and the last is part of the Eagle Nebula.

Quiz: How Well Do You Know Space?

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