Solar System

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Cosma’s Solar System Gallery

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Physical Realm
Universe Astronomical Instrument
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

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

Resources

These are organized by a classification scheme developed exclusively for Cosma. More…

General

Portal

Solar System and Beyond (NASA)
Solar System Exploration (NASA)
Solar System Simulator : View Anyplace from Anyplace (NASA, JPL)
Astrogeology Science Center (USGS)

Our Sun & Solar System Internet Resources (Library of Congress)
Solar System Portal (Wikipedia)

Dictionary

Solar System : the sun together with the group of celestial bodies that are held by its attraction and revolve around it; also : a similar system centered on another star — Webster

OneLook, Free Dictionary, Wiktionary, Urban Dictionary

Encyclopedia

Solar System is the gravitationally bound system comprising the Sun and the objects that orbit it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies. Of the objects that orbit the Sun indirectly, the moons, two are larger than the smallest planet, Mercury.

The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system’s mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed mostly of substances with relatively high melting points compared with hydrogen and helium, called volatiles, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic. — Wikipedia

Solar System (Eric Weisstein’s World of Astronomy, Wolfram Research)
Planets (Eric Weisstein’s World of Astronomy, Wolfram Research)
David Darling’s Internet Encyclopedia of Science, Encyclopædia Britannica
Encyclopedia of the Solar System

Introduction



A Traveler’s Guide to the Planets (National Geographic Channel)

Note: These are 360° Videos — press and hold to explore!

Search

Solar System (Wolfram Alpha)
Planets (Wolfram Alpha)

Science



Weight on Other Planets (Online Conversion.com)





The Planets We Don’t Have (Adam Frank, NPR)

Note: This is a 360° Video — press and hold to explore it!

Preservation

History



Almagest (Wikipedia)
Ptolemy (Wikipedia)



Orrery (Wikipedia)


Solar System Exploration at 50 (NASA)

Library

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

Participation

Education


Solar System (Space Place, NASA)
Solar System Explorer (Space Place, NASA)
NASA Virtual Field Trip: Solar System Math
Our Solar System (Ask an Astronomer, Cornell University)
The Nine Planets Solar System Tour
Solar System (Cosmos4Kids)
Solar System, More than Planets (Cosmos4Kids)
Solar System II| Exploration (Cosmos4Kids)

Course



Crash Course Astronomy (YouTube)

OER Commons: Open Educational Resources

Community

Organization

The Planetary Society

News

Science Daily, NPR Archives

Book

ISBNdb

Government

Solar System Exploration, planets (NASA)
Eyes on the Solar System (JPL/NASA)

Document

USA.gov

Expression


Fun




Poem

OEDILF: The Omnificent English Dictionary In Limerick Form

returntotop

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Solar System News -- ScienceDaily Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

  • Here and gone: Outbound comets are likely of...
    on January 17, 2020 at 2:43 pm

    Astronomers at the National Astronomical Observatory of Japan (NAOJ) have analyzed the paths of two objects heading out of the Solar System forever and determined that they also most likely originated from outside of the Solar System. These results improve our understanding of the outer Solar System and beyond.

  • 'Cold Neptune' and two temperate super-Earths...
    on January 14, 2020 at 2:09 pm

    A 'cold Neptune' and two potentially habitable worlds are part of a cache of five newly discovered exoplanets and eight exoplanet candidates found orbiting nearby red dwarf stars. The two potentially habitable planets are among the nearest stars to our own Sun, making them prime targets for observations by next-generation space- and land-based telescopes.

  • How the solar system got its 'Great Divide,' and...
    on January 13, 2020 at 4:10 pm

    Scientists have finally scaled the solar system's equivalent of the Rocky Mountain range.

  • Mars: Water could disappear faster than expected
    on January 9, 2020 at 7:10 pm

    The small red planet is losing water more quickly than what theory as well as past observations would suggest. An international research team has just revealed that water vapor is accumulating in large quantities and unexpected proportions at an altitude of over 80 km in the Martian atmosphere. The capacity of water to escape would greatly increase during certain seasons.

  • Planet WASP-12b is on a death spiral, say...
    on January 8, 2020 at 6:17 pm

    Astrophysicists have shown that exoplanet WASP-12b, located 600 light-years away, is spiraling in toward certain destruction in about 3 million years.

  • NASA's TESS mission uncovers its first world with...
    on January 7, 2020 at 3:49 pm

    NASA's Transiting Exoplanet Survey Satellite has found its first circumbinary planet, a world orbiting two stars. Called TOI 1338 b, the planet lies 1,300 light-years away and is 6.9 times larger than Earth.

  • Scientists map a planet's global wind patterns...
    on December 12, 2019 at 7:26 pm

    A new article documents the global wind patterns on any planet for the first time. Remote repogramming of the MAVEN spacecraft and its NGIMS instrument enabled the data collection. The results reveal seasonal stability in circulation patterns on Mars, but high short-term volatility in wind direction and speed. The data also allow researchers to infer the topography below based on waves created by the air mass flowing over features like mountains and canyons.

  • Newfound Martian aurora actually the most common;...
    on December 12, 2019 at 3:58 pm

    A type of Martian aurora first identified by NASA's MAVEN spacecraft in 2016 is actually the most common form of aurora occurring on the Red Planet, according to new results from the mission. The aurora is known as a proton aurora and can help scientists track water loss from Mars' atmosphere.

  • Water common -- yet scarce -- in exoplanets
    on December 11, 2019 at 1:26 pm

    The most extensive survey of atmospheric chemical compositions of exoplanets to date has revealed trends that challenge current theories of planet formation and has implications for the search for water in the solar system and beyond.

  • Explaining the 'tiger stripes' of Saturn's moon...
    on December 9, 2019 at 4:05 pm

    Slashed across the south pole of Saturn's moon Enceladus are four straight, parallel fissures or 'tiger stripes' from which water erupts. These fissures aren't quite like anything else in the Solar System. Researchers now think they have a model to explain them.