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en.wikipedia.org/wiki/Oort_cloud

The Oort cloud sometimes called the Öpik–Oort cloud, is a theoretical cloud of predominantly icy planetesimals believed to surround the Sun to as far as somewhere between 50,000 and 200,000 AU (0.8 and 3.2 ly). It is divided into two regions: a disc-shaped inner Oort cloud (or Hills cloud) ... The outer Oort cloud may have trillions of objects larger than 1 km (0.62 mi), ...

en.wikipedia.org/wiki/Ceres_(dwarf_planet)

Ceres is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter. ... This was unexpected because large bodies in the asteroid belt typically do not emit vapor, a hallmark of comets. ..... either merged with other protoplanets to form terrestrial planets or were ejected from the Solar System by Jupiter ...

lunar.colorado.edu/~jaburns/astr2020/files/HW9.Solutions.pdf

May 1, 2015 ... Did a large terrestrial planet ever form in the region of the asteroid belt? a. No, because there was never enough mass there. b. No, because ...

www.studyblue.com/notes/note/n/exam-2/deck/16677266

Feb 22, 2016 ... Study online flashcards and notes for exam 2 including planets order ... Did a large terrestrial planet ever form in the region of the asteroid belt? ... In the case of the asteroid belt the jovian influence prevented the formation of a.

hubblesite.org/reference_desk/faq/all.php.cat=solarsystem

The planets, asteroids and comets in the solar system are loose objects left over from ... Pluto and other large members of the Kuiper Belt are now considered " dwarf planets. ... Mercury, Venus, Earth and Mars are called "rocky" or "terrestrial" planets. ... to form small lumps of frozen gas and dust in the outer region of the solar ...

idahoptv.org/sciencetrek/topics/asteroids_comets/AsteroidMeteorComets.ppt

The belt is where all the asteroids happened to form. The belt is the remnant of a large terrestrial planet that used to be between Mars and Jupiter. The belt is ... Most asteroids in other regions of the inner solar system accreted into one of the planets. ... How did they get there? ... Have we ever witnessed a major impact?

www.psi.edu/epo/faq/asteroids.html

On January 1, 1801, Giuseppe Piazzi discovered the first asteroid, 1 Ceres. ... how would studying these asteroids help our understanding of the terrestrial planets? ... Why did the asteroid belt between Mars and Jupiter not form into a planet? ... Larger ones can be seen farther away (out to the orbit of Mars), but smaller ones ...

www.astro.gsu.edu/~martens/ASTRO1010-Fall2015/12_LectureOutline.pdf

A. The belt is where all the asteroids happened to form. B. The belt is the remnant of a large terrestrial planet that used to be between Mars ... Jupiter did not accrete into a planet. .... Have we ever witnessed a major impact? – Did an impact kill ...

csivc.csi.cuny.edu/supernova7/files/robbins/AST100/lecture-review/Chapter%2012.pdf

... Comets and D arf. Asteroids, Comets, and Dwarf. Planets. Their Nature, Orbits, and Impacts ... HOW DID GALILEO ... form. B. The belt is the remnant of a large terrestrial planet that used to be between Mars and Jupiter. C. The belt is .... From a region of molten rock and iron .... Have we ever witnessed a major impact?

www.space.com/16105-asteroid-belt.html

May 4, 2017 ... Orbits of inner planets are shown as large circles in this ... The Main Asteroid Belt lies more than two-and-a-half times as far as Earth does from the sun. ... A region between Mars and Jupiter became the asteroid belt.