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asteroid
asteroid belt
asteroid belt The region of the Solar System between the orbits of Mars and Jupiter in which most asteroids are found; also known as the
main belt. It extends from 2.1 to 3.3 AU from the Sun, corresponding to orbital periods of 3.0–6.0 years. Asteroids are not uniformly distributed throughout the belt. There are sparsely populated zones, known as
Kirkwood gaps, as well as concentrations of asteroids with similar orbital elements, forming groups and
Hirayama families. The proportion of various asteroid classes changes markedly through the belt (see
Asteroid).
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 "Daily Herald (Arlington Heights, IL)")
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Asteroids are remnants from formation of solar system.(Neighbor)
Newspaper article from: Daily Herald (Arlington Heights, IL); 12/11/2002; 700+ words
; ...astronomer, offered this definition of asteroids and the asteroid belt. "Asteroids are chunks of rock and metal left over...orbit around the sun. If located in the asteroid belt, asteroids take three to six years to orbit the sun...
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Asteroids, Meteors, and Comets.(includes classroom study questions)
Magazine article from: Science Weekly; 2/12/1999; 700+ words
; ...Mars and Earth. These asteroids are called Earth-crossing or Mars-crossing asteroids. Scientists believe...years ago, such an asteroid crashed into the Earth...Asteroids in the News Though asteroids have been featured in...near" the Earth, Asteroid 1997 XF 11 is the one...
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Asteroid narrowly misses Earth
Newspaper article from: Charleston Gazette; 6/21/2002; ; 700+ words
; ...such encounters. The asteroid was not detected until...June 14. When such asteroids are detected, they...100-meter-class asteroid passes within a lunar...only a handful of such asteroids that have penetrated...have been spotted by asteroid search programs...
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Asteroid threat is 'greater than ever': tracking dangerous asteroids is no longer enough, it's time to make sure we can fend off any coming our way. (This Week).(Brief Article)
Magazine article from: New Scientist; 9/14/2002; ; 700+ words
; ...5 chance that an asteroid big enough to destroy...of most dangerous asteroids are proving hard...Lincoln Near Earth Asteroid Research) telescopes...of the 1000 or so asteroids over 1 kilometre...dealing with dangerous asteroids. "We should pick...say, moving an asteroid of 150 metres ...
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Asteroid tags along with Earth
Newspaper article from: The Milwaukee Journal Sentinel; 1/6/2003; ; 695 words
; ...interesting orbits for an asteroid we have ever seen...researcher who studies asteroids and who first plotted...the space rock. The asteroid, called 2002 AA29...program to find and plot asteroids that orbit near the...the 6-mile-wide asteroid that hit and killed...
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 "Albany Times Union (Albany, NY)")
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ASTEROIDS REVEAL EARTH'S FORMATION.(Living Today)
Newspaper article from: Albany Times Union (Albany, NY); 12/12/1989; 700+ words
; ...determine that the asteroids in the inner edge of the Main Asteroid Belt between Mars...It is only the asteroids closest to the sun...rock into clay on asteroids located on the outer edge of the Main Asteroid Belt, Gaffey said...
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 "Post-Tribune (IN)")
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ASTEROID WHIZZED PAST EARTH UNSEEN MARCH PHOTOS SHOW RELATIVELY CLOSE CALL
Newspaper article from: Post-Tribune (IN); 4/21/1989; 700+ words
; ...detect and track asteroids that cross the Earth...orbit, found the asteroid in photographs taken...Earth crossers (asteroids) and calculate...explode near the asteroid and nudge it out...experience." If the asteroid had hit the ocean...Earth- crossing asteroids and that such an...
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Asteroids get solar push toward Earth.(Yarkovsky effect )(Brief Article)
Magazine article from: Science News; 3/6/1999; ; 700+ words
; ...goes a long way. Most asteroids inhabit an elliptical...known as the main asteroid belt, between the orbits...significant number of asteroids with diameters of less...system. The smaller the asteroid, the greater the Yarkovsky...members of one family of asteroids, known as the Astrids...
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Asteroids speed towards Earth but none is expected to hit directly.
Newspaper article from: Knight Ridder/Tribune News Service; 2/22/1999; ; 700+ words
; ...a dangerous asteroid will whiz by...potential killer asteroids at a record...near-miss asteroids is the redirection...changed the asteroid tracking world...most potential asteroid threats within 10 years. Asteroids are considered...
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Asteroids Pose Tricky Puzzle / Collision course with Earth harder to divert than in movies.
Newspaper article from: San Francisco Chronicle; 6/5/1998; 700+ words
; ...about the particular asteroid's size, shape...researchers to identify asteroids approaching Earth...the rest of the asteroid. The simulations...nuclear blasts against asteroids, Alan Harris of...Harris said. Asteroids hitting Earth are...Hollywood. A giant asteroid is thought to ...
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Asteroids
Book article from: Space Sciences
...Other Jupiter-asteroid relationships are unstable, so asteroids are missing from...kicked out of the asteroid belt by Jupiter...forces, so no asteroids remain there...became separate asteroids. Asteroid Sizes, Shapes...
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asteroid
Book article from: The Columbia Encyclopedia, Sixth Edition
...or cisjovian, asteroids are divided into...named for the main asteroid in the grouping...are known as Trojan asteroids . In 1990, a similar asteroid was found in the...Mars. Centaurs are asteroids with orbits in the...
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Asteroid
Encyclopedia entry from: UXL Encyclopedia of Science
Asteroid Asteroids are relatively small...of the solar system. Asteroid belt Most asteroids lie in a main belt between...windows 600 miles away. Asteroids ten times the size of this Siberian asteroid are estimated to hit...
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Asteroid 2002 AA29
Encyclopedia entry from: The Gale Encyclopedia of Science
...x2019; s perspective. Asteroid 2002 AA29 made its closest...projections establish that in 550 AD Asteroid 2002 AA29 technically became...a second moon. Because of Asteroid 2002 AA29 ’ s odd...x201C; Transient Co-Orbital Asteroids. ” Icarus . 171...
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Asteroid Mining
Book article from: Space Sciences
...of the near-Earth asteroids (NEAs) are more accessible...derived from the target asteroid will enable potentially...launching from Earth. Asteroid-sourced raw materials...potentially hazardous asteroids (PHAs) that come to...observation of comet-asteroid transition objects indicate...
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