Cosma / Communication / Knowledge / Realm / Physical / Universe / Planetary System / Star
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Introduction1
Astronomic (YouTube Channel)
Astronomic (Facebook)
Dictionary
star : a self-luminous gaseous spheroidal celestial body of great mass which produces energy by means of nuclear fusion reactions — Merriam-Webster See also OneLook
Thesaurus
Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords
Encyclopedia
Star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked eye from Earth during the night, appearing as a multitude of fixed luminous points in the sky due to their immense distance from Earth. Historically, the most prominent stars were grouped into constellations and asterisms, the brightest of which gained proper names. Astronomers have assembled star catalogues that identify the known stars and provide standardized stellar designations. However, most of the stars in the Universe, including all stars outside our galaxy, the Milky Way, are invisible to the naked eye from Earth. Indeed, most are invisible from Earth even through the most powerful telescopes. — Wikipedia
Star (Encyclopædia Britannica)
Star (COSMOS: The SAO Encyclopedia of Astronomy)
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Adventures
Explore related posts on Cosma …
- Touch the Sun - Remember how Icarus wanted to touch the Sun, but met his demise instead? Well, scientists at NASA wanted to touch the Sun too, but unlike Icarus, they succeeded! Better yet, they are beginning to share what they learned by doing it! Before we get into all of that, let’s go back and start at the … Continue reading Touch the Sun
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Inspiration
Hubble Skymap puts the night sky at your fingertips any time of day. Roam the Milky Way to find a selection of stars and nebulae as seen by Hubble. To explore the skymap, scroll, double click, or pinch/swipe to zoom in and out. Roll over an icon to see the object, click to zero in, and click again for a detailed view and a description. Drag the map to navigate. — Hubble Skymap (NASA Science)
Big Idea 8: We Are All Made of Stardust (Big Ideas in Astronomy, International Astronomical Union)
Talks about Stars (TED: Ideas Worth Spreading)
Articles about Stars (Big Think)
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Innovation
Science
Space, But Messier (YouTube Channel)
Stars (NASA Science)
Life and Death of Stars Interactive (NASA’s Universe of Learning)
Stars Videos (ViewSpace, Space Telescope Science Institute)
Stars Theme Videos (ViewSpace, Space Telescope Science Institute)
Star Formation Videos (ViewSpace, Space Telescope Science Institute)
Life and Death of Star Videos (ViewSpace, Space Telescope Science Institute)
Life Cycle of Stars (Astrum, YouTube Playlist)
Stars (SciShow Space, YouTube Playlist)
Star Formation (Max Planck Institute for Astronomy)
Stars (Lunar & Planetary Institute)
Stars (Eric Weisstein’s World of Astronomy, Wolfram Research)
Stars (Wolfram Alpha)
Star Clusters (Wolfram Alpha)
Star Charts (Wolfram Alpha)
Commerce
Buying Stars and Star Names (International Astonomical Union)
Naming of Astronomical Objects (International Astonomical Union)
Naming Stars (International Astronomical Union)
GSC-II (Association of Universities for Research in Astronomy)
Guide Star Catalog (Wikipedia)
CNS3 – Gliese Catalog of Nearby Stars, 3rd Edition
Gliese Catalogue of Nearby Stars (Wikipedia)
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Preservation
History
History of Stars (Universe Today)
Astronomy and Astrophysics History (NASA’s History Office)
Stars (World History Encyclopedia)
Museum
Stars (National Air and Space Museum)
Library
DDC: 523.8 Stars (Library Thing)
Subject: Stars (Library Thing)
LCC: QB 799 Stars (UPenn Online Books)
LCC: QB 799 Stars (Library of Congress)
Subject: Stars (Library of Congress)
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Participation
Education
NASA Goddard (YouTube Channel)
NASA Goddard Space Flight Center (Official Website)
Stars (Imagine the Universe, NASA Goddard Space Flight Center)
Stars (Cosmos4Kids)
Stars (Space Scoop)
Star Learning Resources (National Air and Space Museum)
Stars (Astronomy Center, ComPADRE)
MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources
Course
Stars (Crash Course Astronomy, YouTube Video)
Low Mass Stars (Crash Course Astronomy, YouTube Video)
White Dwarfs & Planetary Nebulae (Crash Course Astronomy, YouTube Video)
High Mass Stars (Crash Course Astronomy, YouTube Video)
Neutron Stars (Crash Course Astronomy, YouTube Video)
Black Holes (Crash Course Astronomy, YouTube Video)
Binary and Multiple Stars (Crash Course Astronomy, YouTube Video)
Star Clusters (Crash Course Astronomy, YouTube Video)
Community
Organization
International Astronomical Union Division G – Stars and Stellar Physics
American Association of Variable Star Observers
News
Stars (Nova Research Highlights, American Astronomical Society)
Star Formation (Nova Research Highlights, American Astronomical Society)
Stellar Evolution (Nova Research Highlights, American Astronomical Society)
Journal of the American Association of Variable Star Observers
Stellar Astronomy (EurekaAlert, AAAS)
Stellar Astronomy (JSTOR)
Stellar Astronomy (NPR Archives)
Stars (Sky & Telescope)
Stars (Astronomy Magazine)
Stars (Science Daily)
Stars (Phys.org)
Recent News from Phys.org …
- Tracing a neutrino ghost to a distant 'shadow...on June 17, 2026 at 9:00 am
Neutrinos are one of the fundamental particles of the universe. They live a ghostly existence with no electric charge, very little mass and extremely few interactions with matter. They are also the most abundant particles with mass in the universe and can be created through a variety of processes, such as the decay of heavy particles, nuclear reactions in the sun and the explosions of stars.
- Q&A: Boosting NASA's Swift Observatory to support...on June 17, 2026 at 12:20 am
NASA's "rapid-response" space telescope is slowly falling out of orbit, but a daring mission this summer could allow the Neil Gehrels Swift Observatory to continue scanning the sky for many more years to come. In the first mission of its kind, a spacecraft will launch from Earth and rendezvous with Swift to boost it to a higher altitude and extend its life.
- Webb and Hubble reveal the history of a relic of...on June 16, 2026 at 11:30 pm
Researchers using two of humanity's most powerful observatories—NASA's James Webb and Hubble Space Telescopes—have definitively shown that Terzan 5 is not a globular star cluster, as it was once classified, offering new insight into how galaxies like our own form and evolve over time.
- Asteroid or comet? Meteor or meteorite? How to...on June 16, 2026 at 9:40 pm
Have you ever been out at night and seen a streak of light blast across the sky and disappear? Ever wonder where that shooting star came from, or how it got to be in your sky?
- Third time's the charm for a row of faint...on June 16, 2026 at 8:50 pm
A Yale-led team of astronomers has found a third galaxy devoid of dark matter—located alongside the other two in a formation that has never been seen before. Astronomers have followed a faint, cosmic trail of gas to a third galaxy that has no dark matter.
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Related
Here are links to pages about closely related subjects.
“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
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Notes
1. The resources on this page are are organized by a classification scheme developed exclusively for Cosma.





