Just rock or is there water ice on them too?
2006-12-14 21:38:53 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
A comet is an irregular body, assembled from millimeter sized dust grains coated heavily with ices. This is the nucleus of a comet. It has been described as a dirty snowball or a frozen mud ball! The most prominent ice is water ice, followed by carbon dioxide ice, ammonia ice and methane ice. The dust and the ices are so loosely held together that a comet has only the strength of a laddu or a biscuit ! This model of the comet was originally proposed by the American astronomer Fred Whipple and modified by others. It has been verified by observations to a large extent.
2006-12-14 21:48:34 · answer #1 · answered by Ithea Nzau 3 · 0⤊ 0⤋
Ice and dust. Not rock in the conventional sense.
2006-12-14 21:45:03 · answer #2 · answered by plwimsett 5 · 0⤊ 0⤋
Burning hot rocks, hence no possibility of water and/or ice on them?
2006-12-14 21:49:51 · answer #3 · answered by Alfretz T 3 · 0⤊ 0⤋
rock,ice and dust
2006-12-14 22:00:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋