We live in the Milky way galaxy.
There are approximately 200-400 billion stars inside the milky way.
If you travelled at the speed of light it would take about 100,000 years to get from one side to the other.
Nearest major galaxy is Andromeda.
There are approximately 1 trillion stars inside andromeda.
If you travelled at the speed of light it would take about 2,500,000 years from Earth to Andromeda galaxy.
As well as Milky way and Andromeda, there are more than 170,000,000 galaxies in the known observable universe.
Each galaxy contains billions or trillions of stars.
Wonder how many planets exist in the known observable universe?
Wonder how many planets exist in the unknown unobservable universe?
