Word: spacing
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...after that, Reinharz said the school would not have to sell anything in the unlikely event that the stock market recovered. All the same, he added, the Rose Museum would be closed and its building converted into an art study and research center with a gallery space...
...fact, such a directive already exists in some form - the international Outer Space Treaty of 1967, which governs the legal framework for activities in space. Best known for banning governments from putting nuclear weapons into orbit, the treaty also requires space-faring nations to avoid "harmful contamination" of other worlds while exploring the solar system. Human beings have yet to set foot on other planets, so the risk today comes from bacteria that can hitch a ride on unmanned spacecraft like NASA's Mars Phoenix Lander, which arrived on the red planet's surface last May. (See pictures...
...Mars - nothing has been found yet, but scientists hold out hope that the ice present on parts of the planet harbors life - there's a risk that foreign bacteria could contaminate or somehow change the development of their Martian counterparts. But beyond the broad language of the Outer Space Treaty, we don't really have set guidelines for how we should treat microbial life on another planet should we run across...
...difficult to make sure that we avoid squashing new life as we search it out - although doing so could add considerable cost to any space mission. Probes like Phoenix can be more fully sterilized before launch, and debris from any unmanned craft could eventually be recovered. The real challenge will occur if and when humans set foot on Mars or any other planet and begin establishing a more permanent presence, especially if we explore beneath the surface, out of the reach of the sterilizing solar UV radiation. When that day comes, we'll need to step carefully to make sure...
...pictures of five nations' space programs...