Outer Space Quiz

What is space junk?

• Human-made objects orbiting Earth

• Natural debris from comets

• Fragments of asteroids

• Dust particles in space

How many stars are estimated to be in the universe?

• 1 million

• 1 trillion

• 1 septillion

• 1 billion

Where does a star begin its life?

• On a planet

• In a nebula

• In a black hole

• In a galaxy

What is the closest star to Earth?

• Alpha Centauri

• Proxima Centauri

• Sirius

• The Sun

What is a galaxy?

• A type of nebula

• A group of planets

• A group of stars

• A type of star

What causes a meteor to appear as a streak of light in the sky?

• Collision with another meteor

• Burning up in Earth's atmosphere

• Reflection of sunlight

• Passing through a nebula

What is the difference between a meteoroid and a meteorite?

• A meteoroid is larger than a meteorite

• Both are the same

• A meteorite is in space, a meteoroid has hit Earth

• A meteoroid is in space, a meteorite has hit Earth

How many meteoroids enter Earth's atmosphere daily?

• 10,000

• 25 million

• 1 million

• 100,000

What is the likelihood of being hit by space junk?

• 1 in a quadrillion

• 1 in a trillion

• 1 in a billion

• 1 in a million

Who was the first person known to be struck by space junk?

• Sally Ride

• Lottie Williams

• Neil Armstrong

• Yuri Gagarin