Word: uv
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...contact with Martian ice, was heat-sterilized before launch, it's likely that dozens or more species of microbes hitched a ride on Phoenix's 10-month trip to Mars. Once on Mars, it's possible that bacteria shielded by the structure of the spacecraft from the harsh Martian UV radiation could stay alive, in dormancy, for hundreds of thousands of years. And if native microbes do exist on 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...
...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 - yes, I'm sorry, I have to say it - lives long and prospers...
...haul was $200,000 in just a few months, and Lwanga thought his only problem was laundering the cash. In fact, the police were already on to him; they just couldn't prove it. Until, that is, he was picked up with banknotes and clothing that under ultraviolet (UV) light glowed green with splashes of SmartWater, a forensic marking liquid sprayed by a device fitted to four of the cashboxes. In September Lwanga was sentenced to eight years in prison...
Lwanga is the biggest catch among the 500 or so court convictions SmartWater says it has secured so far - a fairly modest number for a company that has been around since 1995. But that's not counting those who simply come clean when the UV light finds them out, says former police detective Phil Cleary, SmartWater's co-founder and ceo. In any case, he says: "We are not a thief-catching company or a property-recovery company; we're selling a deterrent...
It’s unclear what is most offensive about this troubling trend: the fact that they serve no function (they neither block UV rays nor allow effective vision) or that you have to jump continuously to see the loser next to you at a party...