Ieavenly collisions
Sir, — It can be shown, as Mr Gilmore says (“The Press,” August 29), that the combined mass of the present asteroids would not make even a medium-sized planet, but one must not ignore the fact that many of the satellites of the larger planets, particularly Jupiter’s and Saturn’s, are considered to be captured asteroids. Further, one could cite the very large number of impact craters observed on the Moon, Mars, and Mercury to account for large amounts of meteorite-asteroid material. One can assume that even the Earth, with its erosive weather system, and the cloud covered planets have absorbed even more, especially Jupiter because of its size and proximity to the asteroid belt. I think that these factors could easily account for the missing material. — Yours, etc., G. K. MURROW, Rakaia. August 29, 1977.
[This correspondence is now closed. — Editor]
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Press, 1 September 1977, Page 16
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142Ieavenly collisions Press, 1 September 1977, Page 16
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