Unit E: Space Exploration

Heliocentric (Sun-centered) vs. Geocentric (Earth-centered)

Heliocentric Geocentric

Hertzsprung-Russell Diagram

International Space Station

• Considered one of the largest and most important space project ever completed.

• Long term habitation in space.• Possible health effects of

microgravity?• How are resources replenished on the ISS?– Water - recycling– Oxygen – water electrolysis,

filtering carbon dioxide

Other celestial bodies

• Solar vs Lunar • Comets• Meteors• Asteroids

Eclipses

Law of Rocketry

• What is it? • Describe two ancient rockets…

• Hint…– Chinese– Pidgeons

Optical Telescopes: Reflecting and Refracting

Radio Telescopes

• Interferometry – placing two or more telescopes together so that more detail can be gathered.

Satellites

• GPS – Global Positioning System. Uses signals from 3 satellites to determine location on Earth.– The first uses of GPS

were for military purposes.

Satellites

Observing Forest Fires Observing Temperature Conditions

Composition of Stars – (see review sheet)

Star’s Direction of Motion

Review sheet

• Triangulation and parallax– See review

• Azimuth and altitude– Which tools are needed for azimuth and altitude?

Planets – Distance from Sun & Size…