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Planck (Artificial satellite)

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View Resource European Space Agency: Planck Screenshot

The mission of the Plank space observatory included a number of fascinating goals, such as measuring the amount of dark matter in the universe, testing theories of inflation, studying the origins of the universe, and examining the material composition of other galaxies. In short, Planck used highly sensitive instruments to observe the cosmic microwave background, which "preserves a picture of the...

http://www.esa.int/Our_Activities/Space_Science/Planck