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en.wikipedia.org/wiki/Asteroid

Asteroids are minor planets, especially those of the inner Solar System. The larger ones have also been called planetoids. These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disc ...

www.skyandtelescope.com/astronomy-resources/what-are-asteroids

Jul 15, 2014 ... Asteroids are rocky objects primarily found in the asteroid belt, ... as far from the Sun as Earth does, between the orbits of Mars and Jupiter.

www.universetoday.com/37532/where-do-asteroids-come-from

Aug 17, 2009 ... There are actually four sets of asteroids grouped into different fields: the ... To understand where do asteroids come from, you need to know the ...

www.nasa.gov/mission_pages/asteroids/overview/fastfacts.html

... and characterize NEOs – asteroids and comets that come within the vicinity of Earth's orbit and could pose an impact hazard to Earth – and how ..... Makers are creative people with a drive to answer questions and find new ways to do things.

geology.com/articles/near-earth-asteroids.shtml

Near-Earth asteroids: What they are, where they come from, how they form.

www.space.com/51-asteroids-formation-discovery-and-exploration.html

Mar 16, 2017 ... Asteroids are small, airless rocky worlds that revolve around the sun and are too small to be ... Asteroids come in a variety of shapes and sizes. .... Missions to the Asteroid Belt · When Did the Asteroids Become Minor Planets?

www.bibliotecapleyades.net/ciencia/ciencia_asteroids_comets44.htm

May 30, 2011 ... Are carbonaceous asteroids the precursors of life or the wreckage of life? ... Its orbit crosses the Earth's orbit, and it will come close to the Earth ...

www.nationalgeographic.com/science/space/solar-system/asteroids-comets

Learn about the asteroids and comets in our solar system. ... when heated, such as water, and more elliptical (egg-shaped) orbits than asteroids do. ... Long- period comets come from the Oort Cloud, which rings the outer reaches of the solar ...

www.reference.com/science/asteroids-come-3476c93674946f78

Most asteroids originate from a large area between the planets Mars and Jupiter. This area is most commonly referred to as the asteroid belt and contains more ...