Word: marvinism
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...meteorites have also contained traces of organic materials. "Some carry hydrocarbons, amino acids and fatty acids which are present in all living things," says Marvin...
Meteors come from various locations in the universe, says Marvin. "They come from other planets, [from] rubble from asteroids, and a few from comets," she says...
...lunar rocks have been found on Earth as well. Although the moon is physically close to the earth and is approximately the same age, its rocks do not resemble terrestrial rocks, says Marvin...
Since there is no water on the moon's surface and the atmosphere is nonexistent, Marvin says, lunar rocks change very little over time...
...information about the past can be gained by examining meteorites, Marvin says. Since cosmic rays continually bombard meteors in space, researchers can determine the age of meteors by using radioactive isotope dating techniques. This dating method allows scientists to infer what conditions prevailed when the sun and earth were formed, Marvin says...