There is absolutely no reason to question Mark Kelly’s patriotism or the validity of his military service, rank, and retirement status. To do so is a shameful abuse of power.

AI becomes more alien 人工智能自我挑战 再创新高 Episode 171204 / 04 Dec 2017 The new GO master Shipwreck finds earliest astrolabe 沉船中发现世上最早航海星盘 Episode 171127 / 27 Nov 2017 The earliest astrolabe - a type of ...