  First, the good news: At nearly two hours long, next week's lunar eclipse will be the longest of the century. 首先，好消息是：下周的月食长达接近两个小时，是本世纪以来时间最长的一次。 The bad news: North America is the only continent on Earth where it won't be visible. 坏消息是：北美是地球上唯一看不到的大洲。 The best views will be in Africa and Asia, but folks in Europe, South America and Australia will still get partial views. 视野最好的地方是非洲和亚洲，不过欧洲，南非和澳大利亚的朋友们也能看到部分。 The eclipse will occur on the night of July 27 into the early hours of July 28. 月食出现的时间是7月27日晚到7月28日凌晨期间。 According to EarthSky, it's the longest total lunar eclipse of the 21st century. 据地球天文台报道，这将是21世纪以来时间最长的一次月食。 "The total phase of the eclipse – called the totality – spans 1 hour 42 minutes and 57 seconds," said EarthSky's Bruce McClure. “这次月食的总时长—称为总周期—为1小时42分钟57秒，”地球天文台的布鲁斯.麦克卢尔说。 During the eclipse, the moon will appear red, giving it the nickname "blood moon." 月食期间，月亮看起来是红色的，于是有了“血月”的昵称。 A total lunar eclipse occurs when the moon and the sun are on exact opposite sides of Earth, according to NASA. 据美国航空航天局称，当月球和太阳恰好出于地球相反的两侧时，月全食就会出现。 When this happens, Earth blocks the sunlight that normally reaches the moon. 在这个时候，地球就会阻挡原本到达月球的光。 Instead of that sunlight hitting the moon’s surface, Earth's shadow falls on it. 所以阳光不再到达月球表面，相反，地球的阴影会落在月球上。  Although the moon is in Earth's shadow, some sunlight still reaches the moon. 尽管月球落在了地球的阴影中，有些阳光还是可以抵达月表的。 The sunlight passes through Earth's atmosphere, which causes Earth’s atmosphere to filter out most of the blue light. 这些阳光穿过了地球的大气层，所以地球的大气会过滤掉大部分蓝光。 This makes the moon appear red to people on Earth. 这使得月球从地球上看起来呈现红色。  An added treat next week: July's total lunar eclipse occurs on the same day the planet Mars reaches its opposition, when it will shine at its best in the night sky, according to Space.com. 下周还有一项福利：据Space.com消息，七月的月全食当天，恰好也是火星达到背点的一天，那时的火星在夜空中将是它最亮的时候。 A Mars opposition is when the Earth lies between Mars and the sun, making the sun and Mars appear in opposite directions as viewed from the Earth. 火星背点指的是当地球正好位于火星和太阳之间的时候，使得太阳和火星从地球上看起来恰好是相反的位置。  This month, Mars will be at its closest to Earth since 2003. 这个月里，火星距离地球的位置将是2003年以来最近的。 The next lunar eclipse that will be visible in North America will be next winter: Jan. 21, 2019. 北美地区能看到的下一次月食将是下一年冬天：2019年1月21日。 Skywatchers will have to bundle up for that one. 天文观察者们将会聚集在一起来观察它。 As for a solar eclipse, you've got a longer wait. 而对于日食，你可能要等久一点了。 Although there are three partial solar eclipses this year, none are visible in the U.S. 尽管今年有三次日偏食，美国将看不到日全食。 The next total eclipse of the sun visible in the U.S. will occur on April 8, 2024. 下一次能在美国看到的日全食将出现在2024年4月8日。 That gives you plenty of time to stock up on those eclipse glasses you tossed after the big eclipse last year. 这就给了你足够的时间来囤好那些去年的大日食之后丢掉的日食眼镜。  关于这次月食朋友们有什么想法吗？欢迎给amber留言哦！  感谢关注 跟amber一起看世界 |
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