Galaxy

Cosma / Communication / Knowledge / Realm / Physical / Universe / Galaxy
—————————

Introduction1

Astronomic (YouTube Channel)

Dictionary

galaxy : any of the large groups of stars and associated matter that are found throughout the universe — Webster   See also   OneLook

Thesaurus

Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords

Encyclopedia

Galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. Galaxies contain varying amounts of star systems, star clusters and types of interstellar clouds. In between these objects is a sparse interstellar medium of gas, dust, and cosmic rays. Dark matter appears to account for around 90% of the mass of most galaxies. — Wikipedia

Galaxy (Encyclopædia Britannica)

———————-

Innovation

Science

Minute Physics (YouTube Channel)

Stars and Galaxies (NASA)

Galaxies (Lunar & Planetary Institute)
Exploring the First Galaxies with the James Webb Space Telescope (National Air and Space Museum)

Galaxies (Eric Weisstein’s World of Astronomy, Wolfram Research)
Galaxies (Wolfram Alpha)

————————–

Preservation

History

Objectivity (YouTube Channel)
Royal Society (YouTube Channel)
Royal Society (Official Site)

Historical Overview of the Discovery of Galaxies (Earth Guide)
Timeline of Knowledge about Galaxies, Clusters of Galaxies … (Wikipedia)

Library

WorldCat, Library of Congress, UPenn Online Books, Open Library

—————————

Participation

Education

Galaxies (Cosmos4Kids)
What is a Galaxy? (Space Place, NASA)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources

Community

News

Galaxies (Sky & Telescope)
Galaxies (Astronomy Magazine)
Galaxies (Science Daily)
Galaxy (Phys.org)
Galaxies (Scientific American)
Galaxy (NPR Archives)

Government

Document

Galaxy (USA.gov)

———————-

Expression

Humor

Galaxies (Tim Hunkin, The Rudiments of Wisdom Encyclopedia)

returntotop

——–
Related

Here are links to pages about closely related subjects.

Knowledge Realm

Physical

“Fundamentals”
Law (Constant) Relativity
Force Gravity, Electromagnetism (Light, Color)
Matter (Microscope) Molecule, Atom (Periodic Table), Particle

“Space”
Universe (Astronomical Instrument)
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Our Neighborhood
Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid

——
Notes

1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.