The PROCESS experiment: an astrochemistry laboratory for solid and gaseous organic samples in low-earth orbit

The PROCESS (PRebiotic Organic ChEmistry on the Space Station) experiment was part of the EXPOSE-E payload outside the European Columbus module of the International Space Station from February 2008 to August 2009. During this interval, organic samples were exposed to space conditions to simulate their evolution in various astrophysical environments. The samples used represent organic species related to the evolution of organic matter on the small bodies of the Solar System (carbonaceous asteroids and comets), the photolysis of methane in the atmosphere of Titan, and the search for organic matter at the surface of Mars. This paper describes the hardware developed for this experiment as well as the results for the glycine solid-phase samples and the gas-phase samples that were used with regard to the atmosphere of Titan. Lessons learned from this experiment are also presented for future low-Earth orbit astrochemistry investigations.     

如何爱上威士忌

威士忌是真正属于男人的酒,尘世的烟火气味掩饰不了它的天生神韵,如果你从心里接受了它,一生都会是它的信徒,因为它能渗透到你的生命里去。如何鉴别优质威士忌1色泽:拿酒杯时应该捏住杯子的下方杯脚,而不能托着杯壁。因为手指的温度会让杯中的酒发生微妙的变化。在灯光下仔细观察,可以在酒杯的背后衬上一张白纸作为背景。威士忌的颜色有很多种,从深琥珀色到浅琥珀色都有。酒的色泽和威士忌在橡木桶里存放时间的长短密切相关。一般来说,存放时间越长,威士忌的色泽就