Cosma / Communication / Knowledge / Realm / Physical / Universe / Planetary System / Planet
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Introduction1
ScienceAtNASA (YouTube Channel)
NASA Science (Official Website)
Dictionary
planet : any of the large bodies that revolve around a star — Merriam-Webster See also OneLook
Thesaurus
Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords
Encyclopedia
Planet A planet is a large astronomical body that is neither a star nor a stellar remnant. — Wikipedia
Planet (Encyclopædia Britannica)
Planet (COSMOS: The SAO Encyclopedia of Astronomy)
Exoplanet or extrasolar planet is a planet outside the Solar System. The first confirmation of detection occurred in 1992. A different planet, initially detected in 1988, was confirmed in 2003. As of 2022, there are more than 5,000 confirmed exoplanets. — Wikipedia
NASA (YouTube Channel)
NASA (Official Website)
The Discovery of Planets Outside our Solar System (Space and Beyond Box)
Planets of Other Stars (Encyclopædia Britannica)
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Adventures
Explore related posts on Cosma …
- Exoplanet Junket - This week NASA released a new project that they’ve dubbed the Exoplanet Travel Bureau. The core of the project consists of a set of interactive 360° images that show “imagined” surfaces of five exoplanets (TRAPPIST-1e, Kepler-16b, Kepler-186f, PSO J318.5-22 and HD 40307 g). Here are three articles about the experience. This Brilliant Interactive From NASA … Continue reading Exoplanet Junket
- TRAPPIST-1 - You’ve probably heard that NASA has found a trove of “Earth-like” planets circling the TRAPPIST-1 system roughly 40 light years away, but just in case you haven’t, here’s a short video from NASA/JPL about the discovery. NASA Jet Propulsion Laboratory (YouTube Channel) NASA Jet Propulsion Laboratory (Official Website) Most entertainingly, here’s a 360° YouTube video … Continue reading TRAPPIST-1
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Inspiration
On June 13, 2019, the number of known exoplanets passed 4000 according to the NASA Exoplanet Archive! This animation celebrates their discoveries in time and converted them into music. A circle appears at the position of each exoplanet as it is discovered with a colour that indicates which method was used to find it. The size of the circle indicates the relative size of the planet’s orbit and the pitch of the note indicates the relative orbital period of the planet. Planets with longer orbital periods (lower orbital frequencies) are heard as low notes and planets with shorter orbital periods (higher orbital frequencies) are heard as higher notes. The volume and intensity of the note depends on how many planets with similar orbital periods were announced at the same time. The discovery of a single planet will be quiet and soft while the discovery of many planets with similar periods is loud and intense. — SYSTEM Sounds
Note: This is a 360° Video — press and hold to explore it!
SYSTEM Sounds (YouTube Channel)
Astronomy Picture of the Day, APOD Videos (YouTube Channel)
One Map, 4,000 Exoplanets (Daisy Hernandez, Popular Mechanics)
Eyes on Exoplanets enables users to zoom in on more than 1000 planets orbiting distant stars. Exoplanets can be filtered by relevant criteria such as Earth-sized, large rocky planets, gas giants, etc. Distances to these planets are expressed in travel time by car, plane, etc. — Eyes on the Exoplanets
JPLPlanetQuest (YouTube Channel)
Exoplanets Exploration (NASA Science, Official Website)
JPLPlanetQuest (YouTube Channel)
Exoplanets Exploration (NASA Science, Official Website)
Eyes on the Exoplanets (NASA’s JPL & Cal Tech)
Exoplanet Travel Bureau provides different ways to explore features of different exoplanets, including:
360-degree visualizations of planets outside our Solar System
Posters with facts about different exoplanets
Coloring pages of the same posters
Background about NASA space telescopes
Information about discovering and studying exoplanets — Exoplanet Travel Bureau (NASA)
Exoplanet Travel Bureau (NASA)
Talks about Planets (TED: Ideas Worth Spreading)
Articles about Planets (Big Think)
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Innovation
Mathematics
The Math Behind Discovering Exoplanets (David Grossman, Popular Mechanics)
Science
Planetary science (or more rarely, planetology) is the scientific study of planets (including Earth), celestial bodies (such as moons, asteroids, comets) and planetary systems (in particular those of the Solar System) and the processes of their formation. It studies objects ranging in size from micrometeoroids to gas giants, aiming to determine their composition, dynamics, formation, interrelations and history. — Wikipedia
James Webb Space Telescope (NASA, YouTube Channel)
James Webb Space Telescope (NASA, Official Website)
Planet Formation Videos (ViewSpace, Space Telescope Science Institute)
Planet Formation (Max Planck Institute for Astronomy)
The Universe, Explained (Minute Physics, YouTube Playlist)
Minute Physics (Henry Reich, Official Website)
Detecting Other Worlds: Direct Imaging (ViewSpace, Space Telescope Science Institute)
Detecting Other Worlds: Transiting Exoplanet Interactive (ViewSpace, Space Telescope Science Institute)
Science Education Videos (NASA Goddard Space Flight Center, YouTube Playlist)
NASA Goddard Space Flight Center (Official Website)
Exoplanet Exploration (NASA)
Exoplanets (NASA Jet Propulsion Laboratory, YouTube Playlist)
NASA Exoplanet Science Institute (NExScI)
Exoplanet Data Explorer (California & Carnegie Planet Search)
California Planet Survey (California & Carnegie Planet Search)
Lick–Carnegie Exoplanet Survey (Wikipedia)
Exoplanets (SciShow Space, YouTube Playlist)
Exoplanets Videos (ViewSpace, Space Telescope Science Institute)
The Exoplanets Channel (YouTube Channel)
Habitable Exoplanets Catalog (The Exoplanets Channel Official Website)
Naming of Exoplanets (International Astronomical Union)
Exoplanets, Worlds Orbiting Other Stars (Planetary Society)
Extrasolar Planets (Eric Weisstein’s World of Astronomy, Wolfram Research)
Exoplanets (Wolfram Alpha)
Exoplanets Links (California & Carnegie Planet Search)
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Preservation
History
400 Years, 7,500 Words: A History of Planetary Science (Lauren Gold, Cornell Chronicle)
Museum
Exoplanets (National Air and Space Museum)
Archive
Sagan Summer Workshop (YouTube Channel)
NASA Exoplanet Archive (NExScI, Caltech)
NASA Exoplanet Archive (Wikipedia)
Library
DDC: 523.4 Planets (Library Thing)
Subject: Planets (Library Thing)
DDC: 523.24 Exoplanets (Library Thing)
Subject: Exoplanets (Library Thing)
Subject: Planets (Open Library)
Subject: Exoplanets (Open Library)
LCC: QB 361 Planets (Library of Congress)
Subject: Planets (Library of Congress)
LCC: QB 820 Exoplanets (Library of Congress)
Subject: Exoplanets (Library of Congress)
Subject: Planets (WorldCat)
Subject: Exoplanets (WorldCat)
WorldCat, Library of Congress, UPenn Online Books, Open Library
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Participation
ScienceAtNASA (YouTube Channel)
NASA Science (Official Website)
NASA Needs Our Help to Find Exoplanets (Stephanie Mlot, PC Magazine)
Exoplanet Watch (NASA Exoplanet Exploration)
Naming of Exoplanets (International Astronomical Union)
Education
NASA Space Place (YouTube Channel)
NASA Space Place (Official Website)
What is a Planet? (Space Place, NASA)
What Is an Exoplanet? (Space Place, NASA)
Other Solar Systems, Other Earths Interactive (NASA’s Universe of Learning)
Teach with Exoplanets (European Space Agency)
Planets (Science Trek)
Exoplanets (Science Trek)
Planetary Science (National Association of Geoscience Teachers)
The Search for Extrasolar Planets (Introduction to Astronomy, Wolfgang H. Berger, UC San Diego)
Exoplanet Learning Resources (National Air and Space Museum)
Exoplanets (Astronomy Center, ComPADRE)
Exoplanets (CrashCourse, YouTube Video)
MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources
Course
Physics and Chemistry of Terrestrial Planets (Benjamin Weiss & Leigh Royden, MIT OpenCourseware)
Community
Occupation
Careers in Earth, Atmospheric & Planetary Sciences (Purdue University)
Organization
International Astronomical Union (IAU)
Minor Planet Center (International Astronomical Union)
Division for Planetary Sciences (American Astronomical Society)
Exoplanets Section (British Astronomical Association)
The Planetary Society
News
Plantary Science Journal (American Astronomical Society)
Planet (Nova Research Highlights, American Astronomical Society)
Planet Formation (Nova Research Highlights, American Astronomical Society)
Exoplanets (Nova Research Highlights, American Astronomical Society)
The Planetary Society News
The Planetary Report
Planet (EurekaAlert, AAAS)
Exoplanet (EurekaAlert, AAAS)
Planets (JSTOR)
Exoplanets (JSTOR)
Exoplanets News (NASA)
Exoplanets (Sky & Telescope)
Exoplanets (Astronomy Magazine)
Extrasolar Planets (Science Daily)
Exoplanet (Science News)
Exoplanet (Phys.org)
Government
Planetary Science (United States Geological Survey)
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Expression
AstroCappella (YouTube Channel)
AstroCappella: A Musical Exploration of the Universe (Official Site)
The Chromatics: Full Spectrum A Cappella (Official Site)
A Capella Science (YouTube Channel)
A Capella Science (Official Website)
Recent News from Phys.org …
- Jupiter-mass 'exomoon' orbiting brown dwarf...on July 22, 2026 at 3:00 pm
Observations made with the European Southern Observatory's Very Large Telescope (ESO's VLT) have revealed evidence for a moon-like object in the CD-35 2722 system. Unlike moons in our solar system, the newly found object does not orbit a planet, raising questions about what to name it. Instead, it circles a brown dwarf, an object larger than a planet, that orbits the CD-35 2722 star. If confirmed, this could be the first "moon" discovered outside our solar system.
- Finding Venus zone planets with PLATO will show...on July 21, 2026 at 4:00 pm
Dreams of finding a sort of Earth 2.0 motivate much of the thinking around the search for exoplanets. But there is more to exoplanet science than searching for potentially habitable worlds. Scientists need a deeper understanding of the overall exoplanet population to understand the cosmos.
- Researchers advance tech that could help...on July 20, 2026 at 11:40 am
Are we alone in the universe? For scientists working on NASA's proposed Habitable Worlds Observatory, that question is no longer purely philosophical. It is increasingly becoming an engineering problem.
- Giant planets could act as dark matter detectorson July 17, 2026 at 2:20 pm
Researchers in the U.S. have carried out the most stringent tests to date of the idea that an ultraviolet glow in the atmospheres of giant planets could partly arise through the indirect interaction between dark matter and ordinary matter. Led by Carlos Blanco at Penn State University and Rebecca Leane at the SLAC National Accelerator Laboratory, the team's results place some of the tightest constraints yet on the strength of this interaction.
- Nearby rocky planet may be replenishing helium...on July 16, 2026 at 6:00 pm
Nearly a decade after the discovery of LHS 1140b, a rocky exoplanet in the habitable zone of a nearby low-mass star, a new study reveals that the object may have its own atmosphere.
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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.





