If going on an African safari, it's important to remember that it gets cold in the early AM - especially before the sun comes up. This Icebreaker merino 320 gm Arctic jacket is not only warm, it stays clean while driving around in open land rovers. With it's Realfleece Nano technology, dust and odors never cling like other fabrics. For more active activities, the Icebreaker 260gm Cascade jacket is a more all purpose weight.
This graphic shows results of the first analysis of Martian soil by the Chemistry and Mineralogy (CheMin) experiment on NASA's Curiosity rover. The image reveals the presence of crystalline feldspar, pyroxenes and olivine mixed with some amorphous (non-crystalline) material. The soil sample, taken from a wind-blown deposit called "Rocknest" within Gale Crater, where the rover landed, is similar to volcanic soils in Hawaii.