What is a Galaxy?
תיאור Storyboard
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.
טקסט Storyboard
- GALAXY 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.
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ייחוס תמונה
- spiral galaxy M83 - NASA Goddard Photo and Video - (רישיון Attribution )
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