Exploring Our Solar System and Beyond

What makes our solar system unique compared to the over 2600 planetary systems discovered?

• It has the most planets.

• It is the only system with a sun.

• It is the largest system discovered.

• It is an oddball compared to most other systems.

What is unusual about the Trappist-1 system?

• It has more planets than our solar system.

• Its planets are all gas giants.

• It is located in the Milky Way.

• It has seven Earth-sized planets orbiting very close to their star.

What does the classical model of planetary formation fail to explain?

• The formation of the Milky Way.

• The missing inner planets in our solar system.

• The existence of Earth.

• The presence of gas giants.

What are hot Jupiters?

• Planets that are larger than Jupiter.

• Gas giants that orbit very closely to their stars.

• Planets that are colder than Earth.

• Stars that are hotter than the Sun.

How do scientists believe hot Jupiters might have formed?

• By colliding with other planets.

• By forming close to their stars.

• By being ejected from another solar system.

• By forming far from their stars and migrating inward.

What is the Grand Tack model?

• A model explaining the migration of Jupiter and Saturn in the early solar system.

• A hypothesis about the creation of black holes.

• A model describing the formation of the Sun.

• A theory about the formation of the Milky Way.

According to the Grand Tack model, what role did Saturn play in the solar system's formation?

• It collided with Jupiter.

• It stopped Jupiter's inward migration and helped it move outward.

• It created the Sun.

• It formed the asteroid belt.

What would have happened if Jupiter had continued moving inward according to the Grand Tack model?

• Saturn would have become a hot Jupiter.

• The solar system would have more planets.

• The Sun would have been destroyed.

• Earth and other rocky planets might not have formed.

What is the significance of Jupiter's movement in the Grand Tack model?

• It caused the Sun to become hotter.

• It cleared out material in the inner solar system, allowing rocky planets to form.

• It led to the formation of gas giants.

• It created the asteroid belt.

Why do we owe our existence to both Jupiter and Saturn according to the Grand Tack model?

• They created the Sun.

• They collided to form the Earth.

• They formed the asteroid belt.

• Their movements allowed the formation of Earth and other rocky planets.