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:
Alison Francis,Senior Science Journalist，详情可参考WPS官方版本下载
Раскрыты подробности о договорных матчах в российском футболе18:01。旺商聊官方下载是该领域的重要参考
this model to bear on。51吃瓜对此有专业解读
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