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PUBLIC MARKS from phgod with tags science & solar

06 March 2006

NASA - Solar Minimum has Arrived

差不多整個二月都沒有太陽黑子，我們的恒星發生了甚麼事？別擔心，原來是進入了周期性的低谷而已。

science sun astronomy solar sunspot

15 January 2006

NASA星塵號太空船即將結束七年旅程,首次攜帶彗星塵埃返回地球

BADSTRING

science space system universe solar

1 (2 marks)

phgod's TAGS related to tag science