Exploring the Solar System and Beyond

What is the estimated number of star systems in the Milky Way galaxy?

• 400 billion

• 300 billion

• 200 billion

• 100 billion

What is the primary composition of the interstellar medium?

• Stars and planets

• Asteroids and comets

• Gas and dust

• Hydrogen and helium

Which spacecraft was the first to enter the interstellar medium?

• Pioneer 10

• New Horizons

• Voyager 2

• Voyager 1

What is the primary function of the heliosphere?

• To generate solar energy

• To protect the solar system from interstellar radiation

• To maintain the orbits of planets

• To create gravitational pull

What is the main characteristic of the asteroid belt?

• It is densely packed with asteroids

• It is located between Mars and Jupiter

• It is beyond the Kuiper belt

• It contains mostly comets

What is the Kuiper belt known for?

• Being a dense region of stars

• Containing Pluto and other dwarf planets

• Containing the majority of the solar system's gas giants

• Being the closest region to the sun

What is the termination shock?

• The boundary of the solar system

• The collision point of solar and interstellar winds

• The point where the sun's influence ends

• The start of the Kuiper belt

How long would it take to reach the Oort Cloud at Voyager 1's speed?

• 35 years

• 100 years

• 30,000 years

• 250 years

What is the closest star system to our solar system?

• Sirius

• Andromeda

• Alpha Centauri

• Betelgeuse

What is the estimated distance to the Andromeda galaxy?

• 5 million light years

• 500,000 light years

• 1 million light years

• 2.5 million light years