photoとscienceに関するdenchuincのブックマーク (1)

  • The Sun

    The Sun is now in the quietest phase of its 11-year activity cycle, the solar minimum - in fact, it has been unusually quiet this year - with over 200 days so far with no observed sunspots. The solar wind has also dropped to its lowest levels in 50 years. Scientists are unsure of the significance of this unusual calm, but are continually monitoring our closest star with an array of telescopes and

    The Sun
    denchuinc
    denchuinc 2008/10/19
    様々な太陽の写真。太陽表面の粒状斑がまるで細胞のように見える。
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