ScienceCasts: 2017年的日食

2017年8月21日,从自制针孔相机到当今最精密的望远镜,一波横跨大陆的設備将在 "全美日食 "上演。 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/。 eclipse2017.nasa.gov

LicenseCreative Commons Attribution-ShareAlike

More videos by this producer

NASA ScienceCasts: Keeping an Eye on Earth

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

Perseverance Mars Rover & the Search for Ancient Life

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