美国航天局的空间探测器欧西里斯号运行在小行星贝努的轨道上，绘制地图和取样，并在7年后返回地球。 欧西里斯号网站：http://www.asteroidmission.org/ 更多信息请访问http://science.nasa.gov/。 点击这里查看更多视频：https://alugha.com/NASA
Click here to see more videos: https://alugha.com/NASA Neptune will be at opposition in September, providing sky watchers and astronomers the opportunity to observe this planet that is invisible to the naked eye, but that scientists would love to see more clearly. NASA Science: http://science.nasa
Click here to see more videos: https://alugha.com/NASA Visit http://science.nasa.gov/ for more. People around the world have the opportunity to participate in the study of comet 46P/Wirtanen as it has a close approach with Earth in December of 2018.
