Where do meteorites come from? A NEAR miss may tell
Article Abstract:
The Near Earth Asteroid Rendezvous (NEAR) spacecraft will watch the asteroid belt closely to help determine the source of meteorites on earth. NEAR will orbit Eros, an S-class asteroid. Spectral measurements made from earth in the 1970s identified S-class objects as possible matches with meteorites.
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1996
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Are asteroids flying pieces of rubble?
Article Abstract:
Astronomer Alan Harris believes asteroids are piles of rubble held together only by gravity, and not solid chunks of rock. Measurements of rotation periods revealed that there were no small asteroids that spun faster than the speed at which a rubble pile would be torn apart by centrifugal force.
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1996
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New source proposed for most common meteorites
Article Abstract:
Planetary scientist Michael Gaffey believes all of the most common type of meteorites come from a single S-type asteroid known as Hebe. His spectral studies showed that the asteroid's composition is identical to ordinary chondrites, and its orbit make it easy for pieces to fall toward earth.
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1996
User Contributions:
Comment about this article or add new information about this topic:
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