What are Moon phases?According to NASA, the Moon takes about 29.5 days to orbit the Earth. Over the course of this period, it moves through eight recognisable phases, what we call the lunar cycle. While the same side of the Moon always faces us, the amount of its surface lit by the Sun changes as it continues along its path. The shifts in sunlight create the different appearances we see from Earth, ranging from a fully illuminated Moon to a thin sliver or near darkness. The eight phases are:
Last year the US added an average of just 15,000 jobs a month, very few by historic standards.
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printf("=== 排序算法性能测试 (n=%d) ===\n", N);
OpenAI is negotiating with the U.S. government, Sam Altman tells staff
ВСУ запустили «Фламинго» вглубь России. В Москве заявили, что это британские ракеты с украинскими шильдиками16:45