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Agenda • • • • EM Spectrum Review NASA Astrophysics Observatories, techniques, images Visible Spectra, IR demo, UV beads Resources PPT and Resource Word doc http://www.sofia.usra.edu/Edu/materials/pr esentations.html • The Electromagnetic Spectrum Our eyes see only part of the electromagnetic spectrum… “Invisible” Light in Society Each part of the spectrum impacts our daily lives… UV Sunscreen Communications Microwave ovens Remote controls X-rays NASA SMD Astrophysics: Discover the origin, structure, evolution, and destiny of the universe, and search for Earthlike planets The Tools of Our Search We collect light from distant objects, and bring together researchers from many disciplines. Stratospheric Observatory For Infrared Astronomy (SOFIA) Chandra X-ray telescope • http://chandra.harvard.edu/photo/ NASA Resources Representative Color “Invisible” Light in Astronomy Each part of the spectrum provides a piece of the puzzle in understanding our universe. The Pinwheel Galaxy http://hubblesite.org/newscenter/archive/releases/2009/07 Galaxies: How Do They Form and Evolve? Ellipticals Spirals Huge collections of stars, gas, and dust held together by gravity… Irregulars M82: A Burst of Star Formation Infrared Visible X-Ray Centaurus A Infrared Visible X-Ray Looking Back in Time To find the earliest galaxies, we will need to explore the universe in the infrared. The Lives of Stars The Orion Nebula Infrared Visible X-Ray Our Place in the Universe Spectra = Signatures Active Astronomy Lessons Compare and contrast visible & infrared light 1. Overview and pre-test 2. What’s getting through to you? gel filters 3. Seeing the Invisible detector circuits 4. Reflection of Visible and Invisible mirrors and detector circuits 5. Listening to Light detector and transmitter circuits Visible vs Infrared Images Resources SOFIA Active Astronomy • http://www.sofia.usra.edu/Edu/materials/activ eAstronomy/activeAstronomy.html • SEEK and FLIR smart phone IR cameras • ASP AstroShop Noel Encarnacion Inventory and Customer Service Manager [email protected] • PPT and Resource Word doc http://www.sofia.usra.edu/Edu/materials/present ations.html • Resources • Stanford Solar Center Spectrascopes and Colors of the Sun video (high school for power supply and gas tubes) http://solar-center.stanford.edu/ Project Spectra http://lasp.colorado.edu/home/education/ k-12/project-spectra/ NASA Tour of the EM Spectrum • http://missionscience.nasa.gov/ems/index.html • • • • Sponsors for today’s talk • NASA’s SOFIA (Stratospheric Observatory for Infrared Astronomy) Mission • SETI Institute, Mountain View, CA