Place of the Earth in the Universe Flashcards
1
Q
Where is the Earth in the Universe?
A
Earth Solar System Milky Way Local group (cluster) Local super cluster Visible universe
2
Q
What is the Milky Way?
A
The Earth’s galaxy.
It is comprised of billions of stars.
It is spiral shaped.
3
Q
What is the Solar System?
A
The sun and 8 planets make up our solar system.
It is surrounded by the Kuiper belt and the Oort cloud.
4
Q
What is the local group?
A
A cluster of galaxies, held together by gravitational forces.
50 galaxies.
Distance of 10 million lightyears
5
Q
What is the supercluster?
A
Galaxies held together by gravitational forces.
Covers 100 million lightyears
6
Q
What is the visible universe?
A
Stretches over 15 billion lightyears
