"Alien matter" detected by a NASA spacecraft orbiting Earth shows that the chemical make-up of our solar system differs from that of the surrounding galaxy. Researchers discuss the possible meaning of this mismatch in this week's ScienceCast video.
Visit http://science.nasa.gov/ for more.
Tagged under: NASA,ScienceCasts,SMD,Science Mission Directorate,Science@NASA News,Milky Way,heliosphere,solar system,Voyager 1,Voyager 2
Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
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Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
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* Whiteboard required for teacher-paced activities
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