NASA ScienceCasts: Big Questions About Small Worlds
Visit http://science.nasa.gov/ for more. Small Worlds hold keys to questions about our solar system and the origin of life on Earth. Click here to see more videos: https://alugha.com/NASA
国际空间站上的手套箱可进行材料实验。在封闭的空间站裡你不会想让这些材料流出来。 ISS Science: http://www.nasa.gov/iss-science NASA Science: http://science.nasa.gov/ 点击这里查看更多视频:https://alugha.com/NASA
Visit http://science.nasa.gov/ for more. Small Worlds hold keys to questions about our solar system and the origin of life on Earth. Click here to see more videos: https://alugha.com/NASA
A global effort to monitor air quality is in the works as the US, Korea, and the European Union prepare to launch geostationary satellites capable of monitoring pollutants and other aerosols. Visit http://science.nasa.gov/ for more. Click here to see more videos: https://alugha.com/NASA