Earth's Radio Telescopes Combining Forces
Slatterz writes "I own a basic 70mm telescope, which I'm sure Galileo would have given his right arm for in 1609. In fact, this year marks exactly 400 years since Galileo first pointed a telescope at the skies — discovering the moons of Jupiter and helping to prove that the universe doesn't revolve around us. As a mark of respect, the United Nations has declared 2009 the International Year of Astronomy. Official festivities kick off this week in Paris and, to help start the celebrations, 17 radio telescopes in Australia, Asia, Europe and the Americas will track three quasars using something called "real-time Very Long Baseline Interferometry" — basically creating hi-res images by combining their data to simulate a telescope as large as the Earth. Sounds cool."
While growing up, my father imparted something of a passion for astronomy, and I remember being thrilled by a glance through his homebrew Dobsonian reflector. However, light pollution really takes any wonder out of gazing up at the heavens with a naked eye. I've been to some fairly remote places on Earth, such as central Kazakhstan and Western Sahara, but even there local authorities have put up enough lighting to seriously dim the skies. I can't imagine how glorious things must have been a century ago.
It's a pity few even realize what a problem light pollution is. If you want to really appreciate the stars, consider looking at something like Bob Mizon's Light Pollution: Responses and Remedies . But in the face of apathy from officials, there's no much hope for improvement.
Interesting.
They say:
NB: The message above might reflect my opinion right now, but not necessarily tomorrow or next year.