Astronomy 1- Structure/Origin/Galaxies/Gravity

Front

What does 'Helios' mean in the Heliocentric model?

Back

Sun

Front

What theory states that the sun is the center of the solar system?

Back

Heliocentric Theory

Front

What shape is the Milky Way Galaxy?

Back

Spiral

Front

How many stars does the Milky Way Galaxy contain?

Back

Billions of stars

Front

What is the composition of the Milky Way Galaxy?

Back

One- and two-star systems, gases, and dust.

Front

Who proposed the Heliocentric Theory?

Back

Nicolaus Copernicus

Front

What is the Geocentric model?

Back

A model where Earth is the center of the solar system.

Front

What is the Heliocentric model?

Back

A model where the Sun is the center of the solar system.

Front

Which astronomer is known for supporting the Heliocentric Theory with observations?

Back

Galileo Galilei

Front

What does the Big Bang Theory explain?

Back

The origin of the universe from a singular point.