https://padlet.com/starlusk/aegw3r1d1v3nu64l en-us 2022-11-07 21:18:23 UTC 2026-03-09 19:16:39 UTC hello@padlet.com starlusk https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373876750 Elliptical galaxies may be the biggest in our universe. They have over a trillion stars, and can have a diameter that is 10x our Milky Way.]]> 2022-11-07 21:25:27 UTC https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373876750 starlusk https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373880077 Most spiral galaxies contain a central bulge surrounded by a flat, rotating disk of stars. ]]> 2022-11-07 21:28:35 UTC https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373880077 starlusk https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373881610 Irregular galaxies are thought to have once been elliptical or spiral galaxies that lost their shape.]]> 2022-11-07 21:30:19 UTC https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373881610 starlusk https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373887519 By studying the light emitted from various galaxies, Edwin Hubble proposed a classification system for galaxies, based on their shape as observed from Earth. Today we discover new galaxies by using telescopes.]]> 2022-11-07 21:36:51 UTC https://padlet.com/starlusk/aegw3r1d1v3nu64l/wish/2373887519