Astronomy

__Astronomy__: The Study of Space
Do you know what is going on in the heavens?

===Scale of the Universe - This interactive website allows you to explore the scale of items ranging from the smallest known thing all the way to entire observable universe. A great way of putting measurements in perspective.===

===[|Gravity and Orbits Simulation] - Adjust variables such as mass and speed among objects such as a stars, planets, moons, and man made satellites. Observe the gravitiational force and velocity of each object as you trace the orbit.===

Earth's Seasons - This video gives an overview of why the Earth has seasons.
= = media type="youtube" key="taHTA7S_JGk" height="480" width="640" align="center"

[|The Universe: Moon Phases] - (3:16)
= = media type="youtube" key="nXseTWTZlks" height="480" width="853" align="center"

[|Moon Phases Rap] - (3:43) media type="youtube" key="79M2lSVZiY4" height="480" width="640" align="center"

NASA: Lunar Eclipse Essentials (1:47) media type="youtube" key="wuhNZejHeBg" height="480" width="853" align="center"

Formation of the Solar System - (4:28) A quick look at the best theory describing the formation of our solar system.
media type="custom" key="24840624" align="center"

How the Moon Was Born - (2:02) An animated look at the Collision Theory, which best describes the formation of our moon. media type="custom" key="24840726" align="center"

The Hertzsprung-Russell (HR) Diagram Explained - (1:39) An explanation of the HR diagram, which categorizes stars based on color (temperature) and luminosity (brightness). media type="custom" key="24815566" align="center"

====[|Meteor Shower in a Minute] - (1:06) Watch this time lapse video of a meteor shower, you can tell the Earth is rotating and see the streaks of light produced by dozens of meteors.==== media type="custom" key="10077815" width="280" height="280" align="center"

===[|400 years of the Telescope] - this website includes information on today's telescopes, expanding universe, how astronomers search for life, astronomy of many cultures, and women in astronomy.===

===[|Heavens Above] - This site provides information on viewing astronomical events, including stars, constellations, asteroids, meteor showers, spacecraft, satellites, planets, etc.===

===[|Impact Calculator] - An interactive site where the user can change various asteroid conditions and determine the affects of the impact on Earth. Users can place the impact on a Google Map and describe real world data.===