Oort Cloud

Cosma / Communication / Knowledge / Realm / Physical / Universe / Solar System / Oort Cloud Etc.
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Introduction1

Where Does the Solar System End? (NASA Space Place)
NASA Space Place (YouTube Channel)

Encyclopedia

Oort cloud, named after the Dutch astronomer Jan Oort, sometimes called the Öpik–Oort cloud, is a theoretical cloud of predominantly icy planetesimals proposed to surround the Sun at distances ranging from 50,000 to 200,000 AU (0.8 to 3.2 ly). It is divided into two regions: a disc-shaped inner Oort cloud (or Hills cloud) and a spherical outer Oort cloud. Both regions lie beyond the heliosphere and in interstellar space. The Kuiper belt and the scattered disc, the other two reservoirs of trans-Neptunian objects, are less than one thousandth as far from the Sun as the Oort cloud. — Wikipedia

Oort Cloud (Encyclopædia Britannica)
Oort Cloud (COSMOS: The SAO Encyclopedia of Astronomy)

Oort Cloud (Eric Weisstein’s World of Astronomy, Wolfram Research)
Oort Cloud (Wolfram Alpha)

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Innovation

Science

Solar System Exploration: Oort Cloud (NASA Science)

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Preservation

History

The Man Who Knew Comets (Adam Frank, NPR)

Library

Subject: Oort Cloud (Open Library)

Subject: Oort Cloud (WorldCat)

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Participation

Education

Oort Cloud (Cosmos4Kids)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching

Community

News

Oort Cloud (JSTOR)
Oort Cloud (Astronomy Magazine)
Oort Cloud (Phys.org)
Oort Cloud (NPR Archives)

Government

Document

Oort Cloud (USA.gov)

returntotop

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Related

Here are links to pages about closely related subjects.

Knowledge Realm

Physical

“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.