DMS: Big Bang and Solar System

Front

What is the Big Bang Theory?

Back

The Big Bang Theory is the leading explanation for the origin of the universe, stating that it began as a singularity approximately 13.8 billion years ago and has been expanding ever since.

Front

What does it mean if a star's light is blueshifted?

Back

If a star's light is blueshifted, it means the star is moving towards the Earth, causing the wavelengths of light to compress.

Front

What are planetesimals?

Back

Planetesimals are space objects made of solid particles that can collide and merge to form planets.

Front

What is a satellite?

Back

A satellite is a natural or artificial object that orbits a planet. The Moon is a natural satellite of Earth.

Front

List the planets in order from the Sun.

Back

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.

Front

What is redshift?

Back

Redshift is the phenomenon where light from an object moving away from the observer shifts towards the red end of the spectrum.

Front

What is the role of gravity in the formation of the solar system?

Back

Gravity pulls together gas and dust in space to form stars and planets, playing a crucial role in the solar system's formation.

Front

What are asteroids?

Back

Asteroids are small rocky bodies that orbit the Sun, primarily found in the asteroid belt between Mars and Jupiter.

Front

What is the difference between a comet and an asteroid?

Back

Comets are icy bodies that release gas or dust, forming a tail when close to the Sun, while asteroids are rocky and do not have tails.

Front

What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including visible light, radio waves, and X-rays.