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#1
March 3rd 06, 11:53 PM
posted to uk.sci.astronomy
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BBC NEWS | Science/Nature | Telescopes 'worthless' by 2050
"Ground-based astronomy could be impossible in 40 years because of pollution from
aircraft exhaust trails and climate change, an expert says. Aircraft condensation trails - known as contrails - can dissipate, becoming indistinguishable from other clouds." More at http://news.bbc.co.uk/1/hi/sci/tech/4755996.stm -- Nick in Northallerton Also @ www.whelan.me.uk And nickw7coc on Yahoo & MSN but I use http://www.trillian.cc as I like it better also on Skype and Google talk 
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