On February 14, 2000, the Near Earth Asteroid Rendezvous (NEAR) spacecraft went into orbit around the asteroid 433 Eros and successfully began its one-year mission of data gathering.
4 Other Objects in the Solar System
On February 12, 2001, NEAR ended its mission by becoming the first spacecraft to land softly on an asteroid.
4 Section Check Question 1 A __________ is composed of dust and rock particles mixed with frozen water, methane and ammonia. A. asteroid B. comet C. planet D. sun NC: 5.01
4 Section Check Answer The answer is B. Some comets, such as Hale-Bopp, are named after the astronomers who discover them. NC: 5.01
4 Section Check Question 2 Small pieces from a comet’s nucleus that spread out into a loose group are called ____________. A. asteroids B. meteorites C. meteoroids D. meteors NC: 5.01
4 Section Check Answer The answer is C. A meteoroid that burns up in Earth’s atmosphere is called a meteor. NC: 5.01
4 Section Check Question 3 What is a meteorite? Meteorites are meteoroids that strike Earth. Answer NC: 5.01
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