How big can planetary systems get?

The video explores the boundaries of the solar system, focusing on the Voyager missions and their journey beyond the heliopause into interstellar space. It explains the concept of the Hill sphere, which defines the true boundary of the solar system, and discusses the influence of nearby stars on this boundary. The video also covers the Oort Cloud, a distant region believed to contain icy bodies and comets. Finally, it speculates on the theoretical limits of solar system sizes, considering massive stars and their gravitational influence.

What is the heliopause?

• The edge of the solar system

• The orbit of Pluto

• The region where the sun's gravity is strongest

• The boundary where the sun's magnetic field is overcome by interstellar wind

What defines the true boundary of the solar system?

• The Kuiper Belt

• The Hill sphere

• The heliopause

• The orbit of Pluto

What is the Hill sphere?

• The orbit of the moon

• The boundary of the Milky Way

• The region where an object's gravitational pull is dominant

• A spherical region around the sun

What is the Oort Cloud believed to contain?

• Stars

• Icy bodies

• Asteroids

• Planets

How long might it take Voyager 1 to pass through the Oort Cloud?

• 1,000 years

• 10,000 years

• 300 years

• 30,000 to 150,000 years

What is the theoretical limit of a star's mass?

• 150 solar masses

• 100 solar masses

• 50 solar masses

• 300 solar masses

In an isolated environment, how large could a solar system potentially be?

• As large as a star cluster

• As large as a planet

• As large as a galaxy

• As large as the Milky Way