What is the definition of an elliptical galaxy? - Quora
Galaxy | Definition, Formation, Types, Properties, & Facts | Britannica
Elliptical Galaxy Lesson for Kids: Definition & Facts | Study.com
Elliptical galaxy - Wikipedia
Why don't we see young stars inside elliptical galaxies even though there are central super-massive blackholes that can power up those stars for billions of years? - Quora
11 Elliptical Galaxies Facts: The Mysteries of the Universe - Facts.net
Types - NASA Science
Elliptical galaxy - Wikipedia
Elliptical Galaxies
Ring galaxies, the rarest in the Universe, finally explained - Big Think