DB Nebular Theory

Front

What is the DB Nebular Theory?

Back

The DB Nebular Theory explains the formation of the solar system from a rotating cloud of gas and dust, which collapsed under its own gravity, leading to the formation of the Sun and planets.

Front

Where in the solar system would you expect to find a planet that is mostly made of gas?

Back

Very far from the sun.

Front

What stage of the stellar life cycle is our sun currently in?

Back

Main sequence.

Front

What are the outer planets of our solar system?

Back

Jupiter, Saturn, Uranus, and Neptune.

Front

What is the primary element that stars fuse early in their life cycle?

Back

Hydrogen.

Front

What happens during the accretion process in planet formation?

Back

Planetesimals collide and stick together.

Front

What is a planetesimal?

Back

A small body from which a planet originated in the early stages of solar system formation.

Front

What role does gravity play in the DB Nebular Theory?

Back

Gravity causes the gas and dust in the nebula to collapse and form stars and planets.

Front

What is the significance of the main sequence stage in a star's life?

Back

It is the longest stage in a star's life cycle where it fuses hydrogen into helium.

Front

How do gas giants differ from terrestrial planets?

Back

Gas giants are mostly composed of hydrogen and helium, while terrestrial planets are rocky and have solid surfaces.