Oort cloud
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Oort cloud: see comet comet [Gr.,=longhaired], a small celestial body consisting mostly of dust and gases that moves in an elongated elliptical or nearly parabolic orbit around the sun. Comets visible from the earth can be seen for periods ranging from a few days to several months.
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Oort cloud

Vast spherical cloud of small, icy bodies orbiting the Sun at distances ranging from about 0.3 light-year to one light-year or more that is probably the source of most long-period comets. In 1950 the Dutch astronomer Jan Hendrik Oort (1900–92) noted that no comets have orbits that would indicate an interstellar origin. He proposed that the Sun is surrounded by billions of these objects, which are only occasionally detectable when they enter the inner solar system. The Oort cloud is believed to be composed of primordial bodies dating from the formation of the solar system (see solar nebula). Whether the Oort cloud merges, in its inner region, into the disk-shaped Kuiper belt is not known.

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No references found			They found that even outside the periods of comet showers, the inner Oort Cloud was a major source of long-period comets that eventually cross Earth's path. Earth's mass extinctions not likely caused by crashing comets by Asian News International For the past 25 years, the inner Oort Cloud has been considered a mysterious, unobserved region of the solar system capable of providing bursts of bodies that occasionally wipe out life on Earth," said study author Nathan Kaib. Comets probably won't cause the end of life as we know it: study by AFP / AFP American Edition For the past 25 years, the inner Oort Cloud has been considered a mysterious, unobserved region of the solar system capable of providing bursts of bodies that occasionally wipe out life on Earth," said study author Nathan Kaib. Comets probably won't cause the end of life as we know it: study by AFP / AFP Global Edition			inner bailey inner barrel inner bead inner bottom inner bremsstrahlung inner casing inner cell mass inner child inner class inner core inner court Inner Ear Inner Form inner function inner harbor inner hearth Inner Hebrides inner join inner keel inner Lagrangian point inner mantle inner marker inner measure Inner Mongolia Inner Mongolian Autonomous Region Inner Oort cloud inner planet inner potential inner product inner product space inner quantum number inner sanctum Inner Speech inner strake Inner Temple inner tube inner-tube extension Innervation Innes, James Innes, Michael Inness, George innings Innis, Harold Adams Innis, Roy innkeeper's daughter Innocence Innocent I, Saint Innocent II Innocent III Innocent IV Innocent V			Inner Medullary Thin Limb Inner Membrane Peptidase Subunit 1 Inner Metropolitan Regional Organisation of Councils Inner Mold Line Inner Mongolia Inner Mongolia Inner Mongolia Autonomous Region Inner Mongolia Autonomous Region Inner Mongolia Continential International Travel Inner Mongolia Grassland Ecosystem Research Station Inner Mongolia Normal University Inner Mongolia Polytechnic University Inner Mongolia University Inner Mongolia University of Science and Technology Inner Mongolia University of Technology Inner Mongolian Inner Mongolian Inner Mongolian Autonomous Region Inner Mongolian Autonomous Region Inner Mongolian Autonomous Region Inner Mongolian People's Party Inner Moray Firth Inner Moray Firth inner nature Inner normal Inner North Brisbane Mental Health Service Inner nuclear layer Inner nuclear layer Inner nuclear layer Inner nuclear layer Inner Oort cloud Inner Parish Security Corporation inner part Inner Peace Television Network Inner Physical Layer inner planet inner planet inner planets inner planets Inner plate Inner post inner potential inner product inner product Inner Product of Vectors Inner product space Inner product space Inner product space Inner product spaces Inner products Inner psyche Inner psyche inner quantum number Inner Radiation Belt Inner Radius inner reality inner resource inner retinal nuclear layer inner retinal nuclear layer inner retinal nuclear layer Inner ring

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Oort cloud (redirected from Inner Oort cloud)

Oort cloud

Oort cloud
(redirected from Inner Oort cloud)