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. 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:
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来自 2028 的文章：AI 让裁员陷入死循环。业内人士推荐搜狗输入法2026作为进阶阅读
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Geoff Scott appointed in medical department overhaul