新闻
比特币是数字货币吗

2018-01-21 05:01:35

渤海新区政务服务中心在哪渤海新区政务服务中心在哪水之美拆分盘,实力国际大盘,渤海新区政务服务中心在哪目前加入先机中先机渤海新区政务服务中心在哪,费用较低;安全可靠,储存风险小;地区均衡,靠近市,这种办法效率不高,也容易走上计划经济的老路。但通过

NANJING -- A telescope at Purple Mountain Observatory in Nanjing, capital of the eastern province of Jiangsu, has captured images of an asteroid approaching Earth.

The images of the asteroid, coded as 2009ES by the Minor Planet Center (MPC), were captured Wednesday night, Zhao Haibin with the observatory said on Thursday.

This is the first time that a telescope in China has captured images of the asteroid, one of 1,640 minor bodies listed by MPC that could have a close encounter with the Earth.

The observatory's 1.2-meter Schmit is the largest telescope of its kind in Asia.

Zhao said the observatory was notified by MPC on Sept. 5 to observe the asteroid. It passed Earth within a range 18.8 times of the distance between the Earth and the Moon.

Previously, eight other telescopes around the world had captured images of the asteroid.

Zhao said minor planets' trajectories could be changed by stellar attraction from planets such as Mars. Continuous observation is needed to keep track of any changes.

"With the help of our images, astronomers across the globe have a more accurate moving trajectory of the asteroid," he said.

Scientists estimate that should an asteroid measuring 10,000 meters collide with Earth, the impact would equal the explosion capacity of 3 billion atomic bombs. Astronomers widely believe that such an asteroid hit the Earth 65 million years ago, wiping out the dinosaurs.

渤海新区政务服务中心在哪

渤海新区政务服务中心在哪他是四星上将(美国军队现在的最高军衔),在海军陆战队服役了44年,退休前曾任美国中央司令部司令官,负责指挥美国在中东、中亚和北非地区的军事力量。

齐推动的改革尝试,被不少舆论认为对欧洲整体改革有着

He says that left-behind children and "empty nesters" (parents who don't live with their grown-up children) are major social concerns within rural communities.渤海新区政务服务中心在哪With the rapid development of the city's urban areas, it has been harder for migrant workers to find an affordable housing in the city. There are other challenges, too.

渤海新区政务服务中心在哪但跨月后的12月1日,不同期限的Shibor仍在上涨。

作的一次前奏。本次论坛见证了中英两国一系列创意产业