High-energy particles zipping through the cosmos are harmful to life on Earth, but scientists think it could be food for potential alien life elsewhere. Saturn's moon Enceladus (shown here in a 2006 ...

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 ...

The thin air of Mars has long been treated as a problem to be solved, a hostile mix of carbon dioxide and dust that stands ...