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

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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.

  • Ice on lunar south pole may have more than one...
    on October 10, 2019 at 5:57 pm

    New research sheds light on the ages of ice deposits reported in the area of the Moon's south pole -- information that could help identify the sources of the deposits and help in planning future human exploration.

  • Liquifying a rocky exoplanet
    on October 9, 2019 at 1:58 pm

    A hot, molten Earth would be around 5% larger than its solid counterpart. The difference between molten and solid rocky planets is important for the search of Earth-like worlds beyond our Solar System and the understanding of Earth itself.

  • Pressure runs high at edge of solar system
    on October 8, 2019 at 3:59 pm

    Out at the boundary of our solar system, pressure runs high. This pressure, the force plasma, magnetic fields and particles like ions, cosmic rays and electrons exert on one another when they flow and collide, was recently measured by scientists in totality for the first time -- and it was found to be greater than expected.

  • Saturn surpasses Jupiter after the discovery of...
    on October 7, 2019 at 4:32 pm

    Move over Jupiter; Saturn is the new moon king. A team has found 20 new moons orbiting Saturn. This brings the ringed planet's total number of moons to 82, surpassing Jupiter, which has 79.

  • NASA's Curiosity Rover finds an ancient oasis on...
    on October 7, 2019 at 3:29 pm

    If you could travel back in time 3.5 billion years, what would Mars look like? The picture is evolving among scientists working with NASA's Curiosity rover.

  • Many gas giant exoplanets waiting to be discovered
    on September 27, 2019 at 5:51 pm

    There is an as-yet-unseen population of Jupiter-like planets orbiting nearby Sun-like stars, awaiting discovery by future missions like NASA's WFIRST space telescope, according to new models of gas giant planet formation.

  • Could we feed one million people living on Mars?
    on September 24, 2019 at 4:50 pm

    A provocative new study looks at the resource utilization and technological strategies that would be needed to make a Mars population of one million people food self-sufficient.

  • Saturn's icy rings are as old as the solar system...
    on September 18, 2019 at 2:56 pm

    No one knows for certain when Saturn's iconic rings formed, but a new study suggests that they are much older than some scientists think.

  • Newly discovered comet is likely interstellar...
    on September 12, 2019 at 8:14 pm

    A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The official confirmation that comet C/2019 Q4 is an interstellar comet has not yet been made, but if it is interstellar, it would be only the second such object detected.

  • Saturn's rings shine in Hubble's latest portrait
    on September 12, 2019 at 4:05 pm

    Saturn is so beautiful that astronomers cannot resist using the Hubble Space Telescope to take yearly snapshots of the ringed world when it is at its closest distance to Earth. These images, however, are more than just beauty shots. They reveal a planet with a turbulent, dynamic atmosphere.