| http://www.w3.org/ns/prov#value | - Cometary nuclei are composed of an amalgamation of rock, dust, water ice, and frozen gases such as carbon dioxide, carbon monoxide, methane, and ammonia.12 As such, they are popularly described as dirty snowballs" after Fred Whipple's model.13 However, some comets may have a higher dust content, leading them to be called icy dirtballs".14 Research conducted in 2014 suggests that comets are like
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