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For the next few days, Jupiter, Saturn, Venus, Mercury, Neptune and Uranus will all be visible at the same time in the night sky – although binoculars or a telescope will be needed to spot the latter two planets.
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Senior news editor: China Collins，更多细节参见谷歌浏览器【最新下载地址】
Comparison of N-closest dithering using an 8-colour irregular palette. Left to right: .