DB Nebular Theory

Front

What are the outer planets of our solar system?

Back

Jupiter, Saturn, Uranus, and Neptune.

Front

What are planets outside of our solar system called?

Back

Exoplanets.

Front

How long ago did the solar system begin to form?

Back

5 billion years ago.

Front

What is a small celestial body that can collide and fuse to form planets?

Back

Planetesimal.

Front

What happens when a nebula begins to spin?

Back

A planetary disk forms with a protostar in the center.

Front

What is the primary component of a nebula?

Back

Gas and dust.

Front

What is a protostar?

Back

A protostar is a young star that is still in the process of forming.

Front

What role do planetesimals play in the formation of planets?

Back

They collide and fuse together to form larger bodies, eventually leading to planet formation.

Front

What is the significance of the solar nebula in the formation of the solar system?

Back

The solar nebula is the cloud of gas and dust from which the solar system formed.

Front

What is the difference between a planet and a dwarf planet?

Back

A planet has cleared its orbit of other debris, while a dwarf planet has not.