Chinese scientists have recently achieved the fabrication of single-atom-layer metals with a thickness of merely ...

Astronomers may have discovered how water originated in the universe, challenging existing theories on star formation.

《洞穴探险》是一款在地底世界中探险的2D平台式动作游戏，整体风格相当有《印第安纳琼斯》系列的风味，玩家的目的是要在一层又一层的地底通路中收集财宝、闪避各种危险、找到出口以前往下一个关卡。说起来只是一个非常简单的概念，不过从各种层面来说，《洞穴探险》都 ...