Question 1 / 10
What is the closest star to Earth?
The Sun is the closest star to Earth, providing the light and heat necessary for life.
Question 2 / 10
Which galaxy is Earth located in?
The Milky Way is a barred spiral galaxy that contains between 100 and 400 billion stars.
Question 3 / 10
What is the largest planet in our solar system?
Jupiter is more than twice as massive as all the other planets in our solar system combined.
Question 4 / 10
Which planet has the most visible and complex ring system?
Saturn's rings are made up mostly of ice particles with a smaller amount of rocky debris and dust.
Question 5 / 10
What exactly is a "Light Year"?
One light-year is approximately 5.88 trillion miles (9.46 trillion km).
Question 6 / 10
Who was the first human to walk on the moon?
Neil Armstrong stepped onto the lunar surface on July 20, 1969, during the Apollo 11 mission.
Question 7 / 10
What is a "Black Hole"?
Black holes are formed when massive stars collapse at the end of their life cycle.
Question 8 / 10
Which is the smallest planet in our solar system?
Mercury is only slightly larger than Earth's Moon and is the planet closest to the Sun.
Question 9 / 10
Which is the "Hottest" planet in our solar system?
Venus is hotter than Mercury because of its thick, CO2-rich atmosphere that traps heat.
Question 10 / 10
What is the name of our closest neighboring major galaxy?
The Andromeda Galaxy is on a collision course with the Milky Way, expected to merge in about 4 billion years.