探索浩瀚宇宙，发展航天事业，建设航天强国，是我们不懈追求的航天梦。随着地球矿物资源的禀赋下降和日益枯竭，以及航空航天技术的飞速发展，外太空资源开发已成为国际宇航界热议的话题。在太空资源的开采和基地的建设中，冶金工业是必不可少的。但是，外太空物理化学环境与地球有着极大差异，甚至是迥然不同的，比如超高真空、失重、超重，以及天体化学环境组成等，而迄今为止冶金理论都是在地球表面的特定环境中建立的，一旦应用到外太空环境中，面临的压力、温度、重力加速度，以及所在星球化学组成等不同，都会导致已有冶金规律的失效。因此需要因地制宜地考虑外太空条件下的冶金过程及其规律。针对这一问题，拟做一个初步探讨。

To explore the vast cosmos, develop the space industry and build China into a space power is a dream we pursue unremittingly. With the excess consumption of the mineral resource on earth and the rapid development of aerospace technology, the development of space mineral resource has become a hot topic in the international aerospace industry. Metallurgical industry is essential in exploiting space resource and building space base. But the physical and chemical environment in outer space is very different from the Blue planet we live in today, such as ultra-high vacuum, weightlessness, overweight, and the astrochemical
composition. So far, the metallurgical theories are built in a specific environment on the Earth's surface. The existing metallurgical theories will be ineffective once applied to outer space, when faced with extreme pressure, temperature, gravitational acceleration, especially the different chemical composition of the planet. Thus, we need to consider the metallurgical process and theories in the light of outer space environment. This paper intends to make a preliminary discussion on this issue.