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22 Cards in this Set
- Front
- Back
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Big Bang Theory
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A theory of how the universe was created 15 billion years ago.
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Red shift
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A way of telling how fast planets and galaxies are moving away from us.
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Galaxy
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A collection of stars, dust, and gas bound together by gravity.
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Nuclear Fusion
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The process by which nuclei of small atoms combine to form a new, more massive nucleus; the process releases energy.
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Milky Way
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The Milky Way is our galaxy. It holds the sun and our planets.
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Solar System
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The sun and all of the planets and other bodies that travel around it.
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Light Year
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The distance that light travels in one year; about 9.46 trillion kilometers.
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Planetesimal
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A small body from which a planet originated in the early stages of development of the solar system.
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Prominance
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A loop of relatively cool, incandescent gas that extends above the photosphere and above the sun's edge as seen from Earth.
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Solor Wind
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A steam of charged paticles that come from the sun.
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Solor Nebula
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This is what happense to a star when it's diying. Waves of particles are flying away from it.
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Solor Flare
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A ring of energy that loop away from the the sun then back.
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Corona
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The outer most layer of the sun that you can only see during a solor aclipse.
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Sunspot
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A cooler part of the sun that appears darker then the rest of the sun.
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Supernova
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A huge solor explosion that happens when a star dies.
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Photospere
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The layer of the sun that we can see year round.
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Black Hole
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When a star dies it callapses on itself and takes in and desolves anything that gets too close to it.
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Aurorea
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The norther lights in our atomosphere that are caused by solor flares.
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Neutron Star
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A massive star that has died and is bigger than a white dwarf.
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Red Giant
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When a star is begining to die, it gets hotter and gigger and tries to fuse other particles.
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Main Sequence Star
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A star that is in the middle of it's life time, this is the longest stage of a stars life.
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White Dwarf
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When a normal star dies and is durning the last of its fuel.
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