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NASA | Dynamic Earth Excerpt: Viz Challenge Winner

NASA | Dynamic Earth Excerpt: Viz Challenge Winner

(Music) Narrator: What safeguards our solar system… is our star. The sun provides a shield, stretching beyond the last planet in its orbit: a force field that deflects these “cosmic rays.” But these “solar winds” can be dangerous too, especially during outbursts called coronal mass ejections. Want a vision of earth gone wrong? Just look …

One Earth Message

One Earth Message

NASA ANNOUNCER: We have ignition and liftoff of NASA’s New Horizons spacecraft on a decade long voyage to visit the planet Pluto and then beyond. One Earth: The New Horizons Message JON LOMBERG: Hi, I’m Jon Lomberg and I’ve got some great news! Humanity is sending another spacecraft out of the solar system—only the fifth— …

Iron Mountain – Our Story

Iron Mountain – Our Story

One of the most dangerous threats to our nation’s security is the possibility of attack by high speed enemy bombers armed with nuclear weapons. We cannot afford to take that chance. The fact that atom bombs may someday be dropped on our city.

Kennesaw Mountain and the Atlanta Campaign (Lecture)

Kennesaw Mountain and the Atlanta Campaign (Lecture)

Well good afternoon everyone. All right. welcome to Gettysburg National Military Park. On behalf of my colleagues here we’re all very glad that you’re here today for our Winter Lecture Series. My name is Dan Vermilya, I’m sure for many of you might not recognize me. This is my first time doing a Winter Lecture …