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Transcript of Exploring Space
2012 "Energy produced by the interaction of solar wind and Earth's magnetic field pushes electrons down into the atmosphere. The electrons excite atmospheric gases, which give off light and color. Though most common near the Poles, auroras have been seen as far south as the tropics"
-Lawson Parker, National Geographic Magazine Earth
Saturn Neptune http://www.telegraph.co.uk/earth/earthpicturegalleries/9269571/Spectacular-displays-of-the-northern-lights-or-aurora-borealis-in-northern-Norway.html
National Geographic Magazine, Exploring Space, October 2012
http://www.dailymail.co.uk/sciencetech/article-2208485/Nasa-Milky-Way-Galaxy-The-stunning-image-revealing-massive-halo-hot-gas-envelops-universe.html Nicolas Copernicus states that Earth revolves around the Sun Galileo Galilei builds his first telescope The U.S.S.R launched Sputnik 1 satellite Neil Armstrong walks on the surface of the moon Felix Baumgartner skydives from edge of space Diameter: 12,742 km
Mean Temperature: 15 C
Orbital Period: 365.2 days
Length of day: 24 hours
3rd planet from the Sun Mars Diameter: 6780 km
Mean Temperature: -65 C
Orbital Period: 687 days
Length of Day: 24.7 days
4th planet from the sun Diameter: 116,464 km
Mean Temperature: -140 C
Orbital Period: 10,747 days
Length of Day: 10.7 hours
6th planet from the Sun Diameter: 49,248 km
Mean Temperature: -200 C
Orbital Period: 59,800 days
Length of Day: 16.1 hours
8th planet from the Sun Diameter of the known Universe
Number of stars in the Milky Way
How many miles is one light year?
Estimated age of the Universe
Estimated number of Galaxies
Number of discovered planets in the Milky Way 93 Billion Light Years 200-400 Billion 5.87 Trillion 13.75 Billion Years 350 100 Billion