Major Features in the Universe Flashcards
1
Q
Galaxies
A
Gravitationally bound systems of solar systems, stars and space dust. Have black holes in their centre.
2
Q
Stars
A
Spheres of plasma held together by their own gravity. It shines due to thermonuclear fusion of hydrogen in its core.
3
Q
Solar Systems
A
Gravitationally bound systems comprising of a star and objects that orbit it including planets. Orbited by large objects such as planets and much smaller objects including asteroids in the various belts in the system.
4
Q
Nebulae
A
Interstellar clouds of dust and gas that can be up to light years in diameter.
5
Q
Technological Advancements
A
Technological advancements in history such as the moon rocket or the Hubble telescope have greatly increased our understanding and knowledge of space
