Rotation - Spinning on its axis, Revolution - Orbiting an object in space, Neap Tide - Sun, Earth and Moon are at a ninety degree angle creating a lower high tide for observers in its path on Earth, Spring Tide - When the Earth, Sun and Moon are in a straight line with the strongest gravitational pull creating the higher high tide., Seasons - Caused by the tilt of Earth on it's axis and it's position in it's orbit around the sun., Gravitational attraction - Pull of gravity is influenced by the mass between the two objects and their nearness or farness in space., Nuclear Fusion - The energy process occurring in the Sun's core when two hydrogen atoms combine to form the heavier helium and releasing large amounts of energy and light., Solar Flares - Eruptions of charged particles from the sun's surface that temporarily increases radiation output interfering with our magnetic field and disruption telecommuncations., Singularity - The idea that our Universe, all matter, energy and time, came from a small dense point that exploded 13.8 billion years ago., Red Shift - Key evidence for the Big Bang Theory that shows spectral energy shifting towards the red end due to objects moving away from a source., Cosmic Background Radiation - Left over radiation from the Big Bang, further evidence to support the theory., Stellar Nucleosynthesis - The process that creates new elements in stars from a series of nuclear reactions of lighter elements combining to form heavier ones., Low mass star - These stars create elements up to iron, fusions is mostly between hydrogen and helium creating heavier elements., High mass star - These stars create elements up to nickel through fusion in their core. These stars produce heavier elements and are therefore hotter and have more core pressure., Ellipse - Shape of a planetary orbit, Eccentricity - A measurement of the degree of "ovalness" of a planetary orbit, effected by the distance between focal points., Lunar Eclipse - When the moon disappears behind Earth's shadow, during a full moon phase., Solar Eclipse - When the moon blocks the sun from the sky, during a new moon phase., Supernova - Explosion of a supermassive star scattering elements throughout the galaxy, key for forming new planets and stars., Electromagnetic Radiation - The form of energy released by the sun, ranging from gamma rays to radio waves differing only in frequency.,

Astronomy Review

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