We found 655 reviewed resources for astronomers
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...