sentence: Red giants get their name because they appear to be colored red and they are very large.
sentences_before: A 'red giant' is a very big star that weighs about one-half to ten times as much as our Sun.
sentences_after: Many red giants could fit thousands and thousands of suns like ours inside of them. Mira, Aldebaran, Arcturus and Gamma Crucis are red giants.
concept_name: red giant
headings: Red giant