What is a Galaxy?
Storyboard Leírás
A galaxy is a collection of stars that is bound together by gravity. Galaxies are categorized based on their shape into three main groups: elliptical, spiral, or irregular.
Storyboard Szöveg
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- GALAXYA galaxy is a collection of stars that is bound together by gravity. Galaxies are categorized based on their shape into three main groups: elliptical, spiral, or irregular.
A Fényképek Forrásmegjelölések
- spiral galaxy M83 - NASA Goddard Photo and Video - (Engedély Attribution )