欧美精品在线第一页,久久av影院,午夜视频在线播放一三,久久91精品久久久久久秒播,成人一区三区,久久综合狠狠综合久久狠狠色综合,成人av一区二区亚洲精,欧美a级在线观看

NASA's solar probe starts closest-ever approach to Sun

Source: Xinhua| 2018-08-12 16:48:49|Editor: mmm
Video PlayerClose

WASHINGTON, Aug. 12 (Xinhua) -- NASA's Parker Solar Probe, the fastest spacecraft in history, blasted off atop a Delta IV Heavy rocket in the U.S. state of Florida on Sunday, on a mission to study the Sun at closer range than any other spacecraft.

The probe has started its journey to the Sun's fiery corona amidst brutal heat and radiation conditions.

The rocket was launched from Space Launch Complex 37 at the Cape Canaveral Air Force Station in Florida at 3:31 a.m. EDT (0731 GMT), carrying the small car-sized probe toward the Sun with a whopping 55 times more energy than is required to reach Mars.

It is humanity's first close visit to a star and will revolutionize our understanding of the Sun.

Zooming through space in a highly elliptical orbit, the Parker Solar Probe will reach speeds of up to 430,000 miles (690,000 km) per hour, fast enough to get from Washington to Beijing in less than one minute.

During its mission lifetime of under seven years, the probe will complete 24 orbits of the Sun and fly within 3.7 million miles (6 million km) of the Sun's surface at closest approach.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001373851141
主站蜘蛛池模板: 香蕉av一区二区| 99爱国产精品| 大bbw大bbw超大bbw| 欧美3级在线| 激情久久一区二区三区| 一区二区三区欧美日韩| 国产九九影院| 日韩精品少妇一区二区在线看| 欧美精品九九| 国产一级片一区| 在线精品国产一区二区三区| 精品国产九九| 夜夜躁日日躁狠狠久久av| 久久综合久久自在自线精品自| 久久精品综合| 91热精品| 亚洲国产另类久久久精品性| 精品一区二区三区视频?| 久热精品视频在线| 国产伦精品一区二区三区免费优势| aaaaa国产欧美一区二区| 亚洲精品一区二区另类图片| 欧美亚洲视频二区| 国产精品一区二区在线观看 | 国产精品九九九九九九| 国产欧美视频一区二区| 夜色av网站| 欧美一级特黄乱妇高清视频| 国产高清精品一区二区| 国产精品久久久爽爽爽麻豆色哟哟| 久久久午夜爽爽一区二区三区三州| 久久久久亚洲国产精品| 日韩av一区不卡| 午夜免费av电影| 久久久久久国产精品免费| 97人人澡人人爽91综合色| 国产精品国产亚洲精品看不卡15 | 国产偷窥片| 亚洲欧美v国产一区二区| 国产精品一区不卡| 欧美精品第一区| 国产精品久久91| 国产精品一二三区视频网站| 亚洲日本国产精品| 日本一区二区三区电影免费观看| 色就是色欧美亚洲| 久久福利免费视频| 狠狠色成色综合网| 精品国产一区二区三区免费 | 日韩精品中文字幕一区二区三区| 四虎国产精品永久在线| 免费在线观看国产精品| 亚洲女人av久久天堂| 香港日本韩国三级少妇在线观看 | 国产精品久久久久久久久久软件| 色综合久久精品| 一区二区三区国产视频| 久久精品国产色蜜蜜麻豆| 玖玖玖国产精品| 欧美一区二区三区久久综合| 午夜毛片在线看| 久久精品99国产国产| 日本aⅴ精品一区二区三区日| 国产精品剧情一区二区三区| 男女无遮挡xx00动态图120秒| 狠狠躁狠狠躁视频专区| 亚洲日本国产精品| 中文字幕欧美一区二区三区 | 视频一区欧美| 国产69精品久久久久男男系列| 国产一区二区三区在线电影| 国产精品无码永久免费888| 狠狠干一区| 久久免费精品国产| 中文丰满岳乱妇在线观看| 精品久久久久久中文字幕| 久久69视频| 强行挺进女警紧窄湿润| 狠狠色噜噜综合社区| 久热精品视频在线| 欧美一区二区三区免费视频| 免费观看又色又爽又刺激的视频|