Scientists say they may have proof that the surface of Mars sees periodic flows of liquid water. Data from a NASA satellite shows features which appear on slopes, to be associated with salt deposits. What implications does this have for life on Mars? What does this mean for scientists who have been looking for extraterrestrial life? We get answers for this and more from the legendary Buzz Aldrin, the second man on the moon, along with his colleague, Neil Armstrong. Also on the show, Chinese scientist Yang Yuguang.
Subscribe to us on Youtube: https://www.youtube.com/user/CCTVNEWSbeijing
Download for IOS: https://itunes.apple.com/us/app/cctvnews-app/id922456579?l=zh&ls=1&mt=8
Download for Android: https://play.google.com/store/apps/details?id=com.imib.cctv
Follow us on: