Astronomer Teacher Resources
Find Astronomer lesson plans and worksheets
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The Star That Trolled Astronomers
5 mins 9th - 12th CCSS: Adaptable
Is it a bird, or a plane, or a blinking star? Scientists discovered in 1967 what they later determined to be a pulsing star. An episode of a larger solar system playlist discusses the chemistry behind the existence of this type of star.
Dark Matter: How Does it Explain a Star's Speed?
3 mins 6th - 12th CCSS: Adaptable
Studying spiral galaxies can make your head spin! With this video, find out how astronomers calculate a galaxy's rotational speed, and how the prediction that the outermost stars slow down does not seem to be true. The mystery may be...
The Smallest Star in the Universe
4 mins 9th - 12th CCSS: Adaptable
They may be small, but probably still mighty! The characteristics of what astronomers have defined as stars have a minimum size requirement. The tiniest stars pack a lot into a small package—and still have all the properties of their...