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Lesson Plan
American Association of Physics Teachers

Com Padre Digital Library: Open Source Physics: Colliding Galaxies

For Teachers 9th - 10th
Examine colliding galaxies with this science simulation that demonstrates how galactic bridges are formed and how galactic cores are made up.
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Website
Australian Broadcasting Corporation

Australian Broadcasting Corporation: News in Science: Universe a Bit Safer Than We Thought

For Students 9th - 10th
From ABC News in Science, Heather Catchpole's article explores issues related to the collision of galaxies and the subsequent formation of black holes.
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Graphic
NASA

Nasa: Dwarf Galaxies

For Students 9th - 10th
This space telescope image, "Dwarf Galaxies Swimming in Tidal Tails" features little galaxies forming in the midst of two colliding galaxies. In addition, a detailed textual overview explains various specifics of the picture.
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Graphic
Curated OER

Bullet Cluster

For Students 9th - 10th
Dark matter:10