Quiz  /  Extrasolar Planets Quiz

  • 1. 
    Most extrasolar planets are discovered when they pass in front of their star and dim its light. This dimming is called what?

  • A phase
  • A transit
  • An orbit
  • A spectrum

  • 2. 
    The first extrasolar planets were found around which unusual type of star?

  • A brown dwarf
  • A black hole
  • A blue star
  • A pulsar

  • 3. 
    About two-thirds of extrasolar planets have been found by which space telescope?

  • Hubble
  • Chandra
  • Kepler
  • Spitzer

  • 4. 
    Fomalhaut b has one of the longest orbital periods of any planet. How long is it?

  • 256 years
  • 900 years
  • 5 years
  • 1,700 years

  • 5. 
    The place in a planetary system where liquid water can survive on a planet's surface is called what?

  • Happy place
  • Water belt
  • Habitable zone
  • Aqueous region

  • 6. 
    The oldest planet known, nicknamed Methuselah, is approximately how old?

  • 1 billion years
  • 13 billion years
  • 8 billion years
  • 20 billion years

  • 7. 
    GJ 504b has what unusual property?

  • It’s pink.
  • It’s tilted on its side.
  • It has 10 moons.
  • It’s being destroyed.

  • 8. 
    What is happening to planet WD 1145+017b?

  • It’s forming a ring.
  • It’s being pulverized by meteors.
  • It’s being destroyed.
  • Its oceans are freezing.

  • 9. 
    The four Neptune-like planets of Kepler-223 have orbits that are whole number ratios of each other. This is called what?

  • Synchronicity
  • Planetesimalism
  • Resonance
  • Coincidence

  • 10. 
    Rocky planets that are bigger than about 1.5 times the diameter of Earth are called what?

  • Super-Earths
  • Giant terrestrials
  • Mega-rocks
  • Iron cores
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