美国宇航局发射了一个臭氧传感器，藉此帮助监测臭氧层的长期变化。SAGE III传感器将于2017年安装在国际空间站上。 点击这里查看更多视频：https://alugha.com/NASA 更多内容请访问http://science.nasa.gov/。 http://www.nasa.gov/station 此视频是2017年的。
Earth observing instruments on the space station along with photography from crew members serve to keep a multifunctional eye on our home planet. Space Station Research & Tech: http://www.nasa.gov/iss-science NASA Science: http://science.nasa.gov/ Houston We Have a Podcast Episode - The View From
Millions of miles from Earth lies a dusty, cold, desert world with a very thin atmosphere. You know this planet as Mars…but it hasn’t always been this way. There’s evidence that the Red Planet was much wetter and warmer, with a thicker atmosphere, billions of years ago. Could it also have supported
