Where Does the Solar System End?

The video explores the complex question of where the solar system ends. It discusses two main ways to define the solar system's boundary: gravitational influence, which extends to the Oort cloud, and solar radiation influence, marked by the heliopause. Voyager 1's journey is used to illustrate these concepts, highlighting that while it has entered interstellar space, it hasn't left the solar system by all definitions. The video concludes with a note on Voyager's ongoing journey and a call to support SciShow.

What was the main reason for the media's excitement in 2013 regarding Voyager 1?

• It discovered a new planet.

• It left the solar system.

• It returned to Earth.

• It found alien life.

What is the Oort cloud primarily composed of?

• Gaseous planets

• Icy objects

• Metallic asteroids

• Dust particles

How long will it take Voyager 1 to enter the Oort cloud?

• 300 years

• 30,000 years

• 3,000 years

• 30 years

What is the heliosphere?

• A type of star

• A region of space dominated by the sun's gravity

• A cluster of asteroids

• A bubble formed by the solar wind

What marks the boundary where the solar wind's influence ends?

• The Oort cloud

• The heliopause

• The termination shock

• The asteroid belt