16 terms

Astronomy - History Of Science

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Universe
The sum of all space, time, matter and energy.
Geocentric Universe
The outdated view that the Sun and all planets revolved around the Earth.
Constellations
A grouping of stars.
Ptolemy
Ancient scientist who said earth was the center of the universe.
Nicolaus Copernicus
Polish astronomer who proposed a heliocentric (Sun centered) model of the universe.
Galileo Galilei
Italian astronomer and mathematician who was the first to use a telescope to study the stars. He also helped to prove the Heliocentric model with his telescope observations of the planets and Sun.
Johannes Kepler
German astronomer who first stated laws of planetary motion (1571-1630).
Isaac Newton
Defined the laws of motion and gravity. Tried to explain motion of the universe.
Albert Einstein
20th century scientist who is famous for his work in Physics and Astronomy. His famous equation describes that energy (the ability to work) as being equal to the mass (amount of "stuff") of an object times the speed of light (189,000 miles per second) squared. E=M*C^2.
E=mc^2
A physics rule discovered by the scientist Albert Einstein. It says that energy (the ability to work) is the mass of an object times the speed of light squared.
The speed of light.
186,000 miles per second
Sol
The name of the solar system where plant Earth is located.
Solar system planets
There are 8 planets in our Solar system.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Astronomy
The study of the universe.
Seasons
The change in temperature between hot and cold months.
Heliocentric Universe
The now accepted understanding that the Sun is at the center of our solar system. Our planet (Earth) and the other eight planets all rotate around the Sun.
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