Moon

Cosma / Communication / Knowledge / Realm / Physical / Universe / Planetary System / Moon
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moon : a natural satellite of a planet — Merriam-Webster See also OneLook

Encyclopedia

Natural satellite or moon is a celestial body that orbits a planet or smaller body, which is called its primary. The two terms are synonymous for non-artificial satellites of planets, dwarf planets and minor planets. — Wikipedia

Moons Category (Wikipedia)
Moon, Natural Satellite (Encyclopædia Britannica)

Exomoon or extrasolar moon is a natural satellite that orbits an exoplanet or other non-stellar extrasolar body. It is inferred from the empirical study of natural satellites in the Solar System that they are likely to be common elements of planetary systems. The majority of detected exoplanets are giant planets. In the Solar System, the giant planets have large collections of natural satellites. Therefore, it is reasonable to assume that exomoons are equally common. — Wikipedia

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Adventures

Explore related posts on Cosma …

Lunar Landings - Saturday, July 20th is the 50th anniversary of the Apollo 11 Moon Landing, and there’s a massive media blitz surrounding the occasion. Pretty much every major news outlet is covering it in some way, and it’s no surprise that NASA is leading the publicity frenzy. On Friday at 1 p.m. (EDT) NASA is broadcasting 50 … Continue reading Lunar Landings
Moon’scapes - There’s no denying that it’s been a rough week for many Earthlings. On the other hand, it’s been a great week for anyone who spends their time more preoccupied with the Moon than with more earthly concerns. That’s because there’s a treasure trove of news about our lunar realm. For example, NASA’s Goddard Media Studios … Continue reading Moon’scapes
Moon+H2O=Moonbase? - One of the big science stories in the news now is that Earth’s Moon has more water than scientists expected. Here is a link to just one of the hundreds of stories flooding news feeds. The Moon Has More Water Than Originally Thought (Scripps News, YouTube) This round of stories has been inspired by this … Continue reading Moon+H2O=Moonbase?
Octopuses from Space! - Did you hear the one about the octopuses from space? It sounds like the title of a cheesy sci-fi movie, doesn’t it? But it isn’t, this time, or at least, yet. Instead, it’s actually an oddball theory that’s been put forth in a recently published “scientific” article that’s getting quite a lot of buzz in … Continue reading Octopuses from Space!
Space Rocks! - NASA engineers had quite a New Years celebration in 2019 when New Horizons successfully executed a flyby of a tiny object named 2014 MU69 while moving at 32,000 miles per hour. The planetesimal 2014 MU69 is better known by it’s nickname Ultima Thule, and it’s located way out past Pluto in a region of the … Continue reading Space Rocks!
Umbraphiles - umbraphile : One who loves eclipses, often travelling to see them. You’ve probably heard about the April 8th solar eclipse (Wikipedia), and if you live near the path of totality, then you’ve probably also seen news stories like this one. Party in the Path of Totality at These Solar Eclipse Getaways Across New England (Kristi … Continue reading Umbraphiles

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Innovation

Science

Exploring the moons in our Solar System (European Space Agency, YouTube Video)

Can Moons Have Moons? (SciShow, YouTube Video)
The Problem With Moons Having Moons (Astrum, YouTube Video)

Moon Videos (ViewSpace, Space Telescope Science Institute)

Astronomers Find First Evidence of Possible Moon Outside Our Solar System (NASA)
Evidence for a Large Exomoon Orbiting Kepler-1625b (Alex Teachey and David M. Kipping, Science Advances)
Scientists Find What Could Be A History-Making Moon (Nell Greenfieldboyce, NPR’s All Things Considered)

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Preservation

Library

DDC: 523.98 Moons (Library Thing)

Subject: Moons (Open Library)

LCC: QB 401 Moons (UPenn Online Books)

LCC: QB 401 Moons (Library of Congress)

Subject: Moons (WorldCat)

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Participation

Education

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

Community

News

Moon (Nova Research Highlights, American Astronomical Society)
Exomoons (Nova Research Highlights, American Astronomical Society)

Moons (EurekaAlert, AAAS)
Exomoon (JSTOR)

Moons (Phys.org)

Recent News from Phys.org …

Healthy reef sounds can boost coral and fish...
on October 8, 2026 at 9:00 am
Coral reefs are renowned for their visual beauty, but for the marine life they support, their sounds may be just as enticing. Two new studies led by UC San Diego's Scripps Institution of Oceanography reveal how underwater acoustic enrichment—the playback of sounds from healthy reefs—can help spur the recovery of degraded coral reefs and their fish communities.
Margaret Hamilton, scientist who worked on NASA's...
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