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  • ...ere were 817 spotless days during the transit from solar cycle 23 to solar cycle 24. ! width="100" | Solar Cycle
    3 KB (303 words) - 12:49, 23 November 2017
  • Date: 22 November 1960 ...matter into the high atmosphere. Proposals for altering the normal energy cycle of the atmosphere extend also to the alteration of the chemistry of atmosph
    19 KB (2,904 words) - 13:24, 6 September 2018