日本无限资源_福禄影院午夜伦_美国av毛片_亚洲自拍在线观看_激情亚洲一区国产精品_999久久久久

 
NASA's New Horizons spacecraft makes historic flyby of Ultima Thule
                 Source: Xinhua | 2019-01-01 23:03:50 | Editor: huaxia

Artist's impression of NASA's New Horizons spacecraft encountering 2014 MU69, a Kuiper Belt object that orbits one billion miles (1.6 billion kilometers) beyond Pluto, on Jan. 1, 2019. (Credits: NASA/JHUAPL/SwRI/Steve Gribben)

by Tan Jingjing

LOS ANGELES, Jan. 1 (Xinhua) -- NASA's New Horizons spacecraft performed the farthest flyby in history as it approached the Kuiper Belt object Ultima Thule on Tuesday.

New Horizons made the flyby at 12:33 a.m. EST (0533 GMT) on Jan. 1, passing within 2,200 miles (about 3,540 km) of the surface of Ultima Thule at a velocity of 31,500 miles (about 50,694 km) per hour.

It will provide the first close-up look at such a pristine building block of the solar system, according to NASA.

New Horizons' Principal Investigator Alan Stern joined hundreds of cheerful people at the countdown center, and witnessed the historic moment for New Horizons.

New Horizons has set a new record, he said, adding it will start to send back data starting Wednesday, and will continue to do so for one and a half years.

Ultima Thule, at 4 billion miles (about 6.4 billion km) from the Sun and 1 billion miles (about 1.6 billion km) from Pluto, will be the most distant object ever directly explored, according to NASA.

The flyby of Ultima Thule was the first-ever exploration of small Kuiper Belt Objects, a disc-shaped region beyond Neptune that extends from about 30 to 55 astronomical units. This distant region is probably populated with hundreds of thousands of icy bodies and an estimated trillion or more comets.

The spacecraft will turn a suite of instruments onto the mysterious object, and many of its mysteries will be unveiled.

The New Horizons mission, launched in January 2006, aims to understand worlds at the edge of our solar system by making the first reconnaissance of the dwarf planet Pluto, and by venturing deeper into the distant, mysterious Kuiper Belt -- a relic of solar system formation.

It passed Jupiter for a gravity boost on Feb. 28, 2007, and made a historic flight through the Pluto system on July 14, 2015.

New Horizons was the first mission to study Pluto and its system of moons, according to NASA.

The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, designed, built and operates the New Horizons spacecraft and manages the mission for NASA's Science Mission Directorate.

Back to Top Close
Xinhuanet

NASA's New Horizons spacecraft makes historic flyby of Ultima Thule

Source: Xinhua 2019-01-01 23:03:50

Artist's impression of NASA's New Horizons spacecraft encountering 2014 MU69, a Kuiper Belt object that orbits one billion miles (1.6 billion kilometers) beyond Pluto, on Jan. 1, 2019. (Credits: NASA/JHUAPL/SwRI/Steve Gribben)

by Tan Jingjing

LOS ANGELES, Jan. 1 (Xinhua) -- NASA's New Horizons spacecraft performed the farthest flyby in history as it approached the Kuiper Belt object Ultima Thule on Tuesday.

New Horizons made the flyby at 12:33 a.m. EST (0533 GMT) on Jan. 1, passing within 2,200 miles (about 3,540 km) of the surface of Ultima Thule at a velocity of 31,500 miles (about 50,694 km) per hour.

It will provide the first close-up look at such a pristine building block of the solar system, according to NASA.

New Horizons' Principal Investigator Alan Stern joined hundreds of cheerful people at the countdown center, and witnessed the historic moment for New Horizons.

New Horizons has set a new record, he said, adding it will start to send back data starting Wednesday, and will continue to do so for one and a half years.

Ultima Thule, at 4 billion miles (about 6.4 billion km) from the Sun and 1 billion miles (about 1.6 billion km) from Pluto, will be the most distant object ever directly explored, according to NASA.

The flyby of Ultima Thule was the first-ever exploration of small Kuiper Belt Objects, a disc-shaped region beyond Neptune that extends from about 30 to 55 astronomical units. This distant region is probably populated with hundreds of thousands of icy bodies and an estimated trillion or more comets.

The spacecraft will turn a suite of instruments onto the mysterious object, and many of its mysteries will be unveiled.

The New Horizons mission, launched in January 2006, aims to understand worlds at the edge of our solar system by making the first reconnaissance of the dwarf planet Pluto, and by venturing deeper into the distant, mysterious Kuiper Belt -- a relic of solar system formation.

It passed Jupiter for a gravity boost on Feb. 28, 2007, and made a historic flight through the Pluto system on July 14, 2015.

New Horizons was the first mission to study Pluto and its system of moons, according to NASA.

The Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, designed, built and operates the New Horizons spacecraft and manages the mission for NASA's Science Mission Directorate.

010020070750000000000000011100001377131091
主站蜘蛛池模板: 午夜影院120| 99热九九这里只有精品10 | 91精品啪在线观看国产免费 | 波多野中文字幕 | 国产精品偷窥熟女精品视频 | 亚洲av无一区二区三区 | 亚洲中文字幕VA福利 | 宅男666在线永久免费观看 | 天天爽影院一区二区在线影院 | 免费看裸体美女脱了衣服露视频胸 | 人妻无码AV中文系列久久兔费 | 日韩推理片在线免费看网站 | 久久国产经典视频 | a天堂中文在线观看 | 中文字幕日韩欧美在线 | 国产精品人成 | 日韩伦理久久 | 黑人干亚洲女 | 双腿张开被9个男人调教 | 中文成人无码精品久久久不卡 | 成人免费视频源码网站 | 日本亚洲国产一区二区三区 | 伊波拉病毒在线观看超清国语 | 亚洲va在线视频 | 久久久久久亚洲精品视频 | 国产精品视频免费一区二区 | av在线影片 | 久久嫩草精品久久久久 | 国产精品揄拍一区二区 | 欧美乱大交xxxxx春色视频 | 亚洲国产成人久久一区www妖精 | tube69最新 | 亂倫近親相姦中文字幕视频 | 无码国内精品久久人 | 国产精品无码日韩字幕资不卡 | 亚洲三级在线看 | 国产精品一级二级在线观看 | 中文字幕第66页 | 国产精选视频 | 含着她的花蒂啃到高潮在线观看 | 亚洲美女视频一区二区 |