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Exploring Space add clip of movie gravity ?

Exploring Space add clip of movie gravity ?. Weeeeee ! (2.1). The Thrill of Exploring. Humans, by nature, want and need to explore Need to understand Find new resources Explore new areas of Earth When Earth wasn’t enough, we ventured into space! More difficult – why? Far $$

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Exploring Space add clip of movie gravity ?

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  1. Exploring Spaceadd clip of movie gravity? Weeeeee! (2.1)

  2. The Thrill of Exploring • Humans, by nature, want and need to explore • Need to understand • Find new resources • Explore new areas of Earth • When Earth wasn’t enough, we ventured into space! • More difficult – why? • Far • $$ • Extreme cold and danger • Need ways to explore space from Earth

  3. Telescopes • Telescopes: Use electromagnetic radiation • Electromagnetic Radiation = energy emitted, traveling as a wave • Travels at the speed of light

  4. Telescopes • Traditional telescopes (optical) detect visible light (small part of the spectrum) • Radio telescopes detect non-visible wavelengths • Can be used on cloudy days or at night • Only small portions of the electromagnetic spectrum from space can reach Earth’s surface • Telescopes are needed above the atmosphere

  5. “MOST” – Canada’s Space Telescope • Microvariability and Oscillations of STars • Launched in 2003 • Purpose: to study stars similar to the sun • Was expected to study 10 stars and last 1 year • Has provided data on over 1500 stars and is expected to last until 2015

  6. Orbiters and Landers • Planetary orbiters travel to other planets and take very detailed observations. • Orbit another planet and take high-res pictures • Short life expectancies (2-3 yrs) • Planetary landers can study weather and the ground • Can’t move around – small environmental sample • Shorter life expectancies (few months) • Risky business! • Mars Climate Orbiter – Yikes!

  7. Satellites • Def: Human-made object or vehicle that orbits a celestial body • Communication • TV, Internet, weather reports, telephone • GPS Satellites • More than 2 dozen are spread above Earth • Remote-sensing Satellites • Low orbiting – survey Earth quickly • Useful for meteorology, climatology, oceanography

  8. Satellites • “Sputnik” – 1st artificial satellite put into orbit • Soviet Union • Oct 4, 1957 • Burned up in the atmosphere 5 months later • Canada launched the first commercial satellite • For the CBC on Nov 9, 1972 – called: Anik 1 • For remote communities

  9. International Space Station (ISS) • Partnership between many countries to share costs • Orbits only 360km above Earth! • Space-based lab • Microgravity • Canadarm, Canadarm2 and Dextre • Used on NASA’s space shuttles to help with construction of the ISS • http://www.youtube.com/watch?v=ck76yL_s30s

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