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The Universe - everything there is (Our Solar System - the sun and…
The Universe
- everything there is
The Big Bang
- 13.8 Bya, the universe began from a single point
Cosmic Background Radiation
- electromagnetic radiation as a remnant from an early stage of the universe in Big Bang
Redshift
- when light or other electromagnetic radiation from an object is increased in wavelength
Edwin Hubble
- helped prove how the universe is expanding, proving the big bang theory
Our Solar System - the sun and everything that orbits it
Heliocentric Model
- Everything revolves around the sun
Galileo
- while trying too see the heavens through the newly invented telescope he found evidence that supported the heliocentric theory.
Copernicus
- proposed the heliocentric model, was not accepted
Kepler
- discovered that the planets move in an elliptical orbit not an ova
Geocentric
Model
- everything in the solar system revolves around the earth
Ptolemy
- started the geocentric model
Terrestrial Planets
- the four planets closer to the sun
Mercury
- the smallest and innermost planet in the Solar System.
Venus
- second planet from the Sun
Earth
- the third planet from the Sun and the only astronomical object known to have life
Our Moon
- an astronomical body that orbits planet Earth
Mars
- Mars is the fourth planet from the sun and the second smaleest planet next to mercury
Sun
- star at the center of the Solar System
Jupiter
- fifth planet from the Sun and the largest in the Solar System
Ice Giant
- a giant planet composed mainly of elements heavier than hydrogen and helium
Neptune
- the eighth and farthest known planet from the Sun in the Solar System
Uranus
- seventh planet from the Sun
Gas Giants
- a giant planet composed mainly of hydrogen and helium.
Saturn
- the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter
Jupiter
- fifth planet from the Sun and the largest in the Solar System
The Life of Stars
- stars go through cycles of life and death
Nebula
- a cloud of gas (H & He) Stars are born here
Massive Star
- a large bright star that is hot and short-lived
Super Red Giant
- An aging high-mass star that has run out of H fuel and expanded
Neutron Star
- A small, dense star that's left after a supernova.
Black Hole
- A region in space after a supernova with high density and so much gravity that nothing can escape from it, not even light.
Low-Mass Star
- a small dim star that burns cooler and has a longer life
Red Giant
- an aging low mass star that has run out of H fuel and expanded
Planetary Nebula
- A dying low mass star surrounded by a cloud of gas
White Dwarf Star
- leftover core of a low mass star
Gas Giants
- a giant planet composed mainly of hydrogen and helium.