Word: foote
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Dates: during 2000-2009
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...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 of the Mars Rover's five years in space...
...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 that native life on Mars...
...which serve as natural barriers. At its most developed, the border looks like Petrapole, the channel for the vast majority of legal migration and one of the largest land crossings in Asia. More than 1,000 people pass through every day, most by bus and some on foot, along with about 400 commercial trucks. They walk through a metal gate several meters wide, accompanied by a bizarre set of rituals. The Indian bus lets its passengers off on one side of the checkpoint, and they board a bus owned by a partner company on the other. The luggage passes from...
Witty super bowl ads these are not. The commercials for foot pads that suck the toxins from your body are very straightforward: smack the cushions onto the soles of your feet, and overnight, the ads claim, you will sweat out metals, minerals and any other accumulated nastiness. Who wouldn't be appalled by the brown footprint left the next morning by a body newly unburdened of pollutants? And who wouldn't dial that toll-free number right away, credit card in (toxin-laden) hand? (See the best and worst Super Bowl commercials...
...selling artifacts individually in order to fund its expeditions. Noting that every coin is carefully catalogued so that no information is lost, Stemm defends the practice. "Selling these coins to pay for the archaeology and to save these shipwrecks from destruction is much better than asking taxpayers to foot the bill...