Discuss each question with your team. Be prepared to explain the reasoning behind your team's answers after the quiz.

1. When did galaxies first form in our universe?
   • 100,000 years
   • 1 million years
   • 10 million years
   • 1 billion years
   • 10 billion years
2. In cosmology, what problem does the theory of inflation solve?
   • the Horizon Problem
   • the Flatness Problem
   • Olber’s Paradox
   • the Big Bang Problem
   • the String Problem
3. Which of the following are evidence for Dark Matter?
   • super massive black holes at the center of galaxies
   • dark lanes in galaxies
   • rotation curves of galaxies
   • gravitational lensing around the Sun
4. Mergers between irregular galaxies form spiral galaxies.
   • True
   • False
5. What is our cosmic address?
   • Earth, Inner Solar System, Orion Nebula, Milky Way, Local Group
   • Earth, Solar Nebula, Local Cluster, Milkyway Galaxy, Virgo Group
   • Earth, Solar System, Local star cluster, Persius Arm, Milky Way, Laniakea Super Cluster 
   • Earth, Solar System, Milkyway Galaxy, Local Group, Virgo Cluster, Laniakea Super Cluster
   • Earth, Sol system, Local Cluster, Milky Way, Virgo Group