Topic 3-Earth in the Universe
{"Image DocumentName": "Topic 3-Earth in the Universe", "Image ImageDescription": "Celestial Object-Any object outside Earth\u2019s atmosphere. Universe-All time, matter, energy and space. The Big Bang Theory-The theory that the universe started about 13 billion years ago with an incredible explosion of all matter and energy from an infinitesimally small point. Doppler Effect- The effect of wavelengths to be stretched longer when an object is traveling away from you, and compressed when the object is traveling towards you. With light the expansion (longer wavelengths) appear red, and the compression () shorter wavelength) appear blue. Red Shift- The stretching of wavelengths of light as objects travel away from a viewer. Galaxy-A collection of hundreds of billions of stars and gas and dust clouds in one region of space. Milky Way Galaxy-The spiral-shaped galaxy to which our solar system belongs. Star- a large ball of hydrogen and helium gas that produces energy through nuclear fusion. Nuclear Fusion-The process of combining protons and neutrons to form larger nuclei and release energy. Luminosity- How bright a star would be compared to the sun if it was at the same distance as the sun. Solar System-A collection of nine planets, 141 moons , various asteroids, meteoroids, comets and dust that all orbit the sun.   As of September Asteroid- A solid, rocky, usually metallic body that orbits the sun. Asteroids have various shapes and are smaller than planets. Most orbit in a belt between Mars and Jupiter.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}