Episode 160902 / 02 Sep 2016 Investigations show that the planet orbiting Proxima Centauri might be habitable Microbeads controversy 塑胶微粒引起的争议 Episode 160826 / 26 Aug 2016 Small but dangerous Zebra ...

本集内容. How is Venice still standing on water after 1,600 years? 威尼斯为何能在水面上屹立 1600 年？ 文字稿. How is Venice standing on water after 1,600 year ...