... Planets, moons, asteroids and comets contain resources such as water and minerals, valuable to astronauts and potentially to Earth, with other elements such as platinum as a byproduct of the extraction. ... Lewis hoped we could defray cost s b y "bringing inexpensive products down to Earth. ... We could make travel to Mars cheaper by "bringing just enough fuel [to get there], then use the Martian CO2 atmosphere to go home. One ton of equipment will be able to produce 100 tons of fuel." ...

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• http://www.aaa.org/EyepieceFiles/aaa/2010_07_July_Eyepiece.pdf

... Well, it's the time of the year when we can expect the cold and snow, so I'll keep up the article on dressing for observing in the cold. 2007 has been great, but it's time to start planning the 2008 spring-summer-fall observing season. ... Barb Hubal . ... Cotton doesn't hold in heat very well even when dry and it absorbs moisture, so once it's damp, the moisture conducts heat right through it. ... If you get cold easily, put on a short sleeve crew neck poly shirt on top of this layer. ... Layer...