Astronomy and physics education research and comments, field-tested think-pair-share (peer instruction) clicker questions, flashcard questions, in-class activities (lecture-tutorials), current events questions, backwards faded scaffolding laboratories, Hake gains, field-tested multiple-choice and essay exam questions, indices of discrimination, presentation slides, photos, ephemerae, astronomy in the marketplace, unrelated random sketches and minutiae.
20060724
Stellar obscuratae
http://www.spacetelescope.org/videos/html/mov/320px/astro_an.html
European Space Agency/Hubble Space Telescope, and Robert Gendler (http://www.robgendlerastropics.com/)
Astronomy 10 learning goal Q11.1
Short movie clip showing stars and nebulae (dark, reflection, and emission) in space.   The result is that it is not possible to see more than a tiny fraction of the stars in our own Milky Way.
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