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

More…


    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.

    • Evidence of changing seasons, rain on Saturn's...
      on January 16, 2019 at 4:55 pm

      An image from the international Cassini spacecraft provides evidence of rainfall on the north pole of Titan, the largest of Saturn's moons. The rainfall would be the first indication of the start of a summer season in the moon's northern hemisphere. […]

    • Nature's magnifying glass reveals unexpected...
      on January 8, 2019 at 7:13 pm

      Astronomers have found a new exoplanet that could alter the standing theory of planet formation. With a mass that's between that of Neptune and Saturn, and its location beyond the 'snow line' of its host star, an alien world of this scale was supposed to be rare. […]

    • TESS discovers its third new planet, with longest...
      on January 7, 2019 at 11:57 pm

      NASA's Transiting Exoplanet Survey Satellite, TESS, has discovered a third small planet outside our solar system, scientists report. […]

    • New Ultima Thule discoveries from NASA's New...
      on January 3, 2019 at 4:11 pm

      Data from NASA's New Horizons spacecraft, which explored Kuiper Belt object Ultima Thule earlier this week, is yielding scientific discoveries daily. […]

    • NASA's New Horizons mission reveals entirely new...
      on January 2, 2019 at 9:43 pm

      Scientists from NASA's New Horizons mission released the first detailed images of the most distant object ever explored -- the Kuiper Belt object nicknamed Ultima Thule. Its remarkable appearance, unlike anything we've seen before, illuminates the processes that built the planets four and a half billion years ago. […]

    • Juno mission captures images of volcanic plumes...
      on January 2, 2019 at 4:28 pm

      The Juno spacecraft captured new images of a volcanic plume on Jupiter's moon Io during a December 21 flyby. JunoCam, the Stellar Reference Unit (SRU), the Jovian Infrared Auroral Mapper (JIRAM), and the Ultraviolet Imaging Spectrograph (UVS) observed Io for over an hour, providing a glimpse of the moon's polar regions as well as evidence of an active eruption. […]

    • New Horizons successfully explores Ultima Thule
      on January 1, 2019 at 6:05 pm

      NASA's New Horizons spacecraft flew past Ultima Thule in the early hours of New Year's Day, ushering in the era of exploration from the enigmatic Kuiper Belt, a region of primordial objects that holds keys to understanding the origins of the solar system. […]

    • New Horizons spacecraft homing in on Kuiper Belt...
      on December 31, 2018 at 4:11 pm

      Only hours from completing a historic flyby of Kuiper Belt object 2014 MU69, nicknamed Ultima Thule, NASA's New Horizons spacecraft is on course and ready to gather scientific data on the small object's geology, composition, atmosphere and more. Closest approach takes place in the early morning hours of New Year's Day -- 12:33 a.m. EST -- marking the event as the most distant exploration of worlds ever completed by humankind. […]

    • All about Ultima: New Horizons flyby target is...
      on December 27, 2018 at 8:27 pm

      NASA's New Horizons spacecraft is set to fly by a target nicknamed 'Ultima Thule,' 4 billion miles from the Sun, on New Year's Day 2019. No spacecraft has ever explored such a distant world. […]

    • NASA's InSight places first instrument on Mars
      on December 21, 2018 at 9:16 pm

      NASA's InSight lander has deployed its first instrument onto the surface of Mars, completing a major mission milestone. New images from the lander show the seismometer on the ground, its copper-colored covering faintly illuminated in the Martian dusk. […]