Of Light Pollution and Blackouts

I happened across a pair of images on the Picture of the Week at the SkyNews.com web site that illustrate all too well what it is we drown out with our over-dependence on lights.

These were taken by Todd Carlson, who lives north of Toronto. What impressed me about the first image is that I’ve previously only seen the Milky Way like that in the desert U.S. southwest or at sea under very dark skies. It was taken during the height of the blackout. The second image was snapped the next night, after the lights came back on. While I fully understand why we need lighting for our cities, it is a crying shame that so much of that light bounces off to the sky, and is so wasteful of energy. Sometimes progress comes at too high a price.

One of the unexpected consequences of the Big Blackout of 2003 was the re-appearance of the stars in the skies over the darkened cities of Northeast US and parts of Canada. People who hadn’t seen the stars in some time were remarkably impressed with how beautiful the night sky could be. I often wonder if they missed the stars the next night — when the lights came back on.

What a difference a blackout makes!
Lights OUT!
Lights ON!!
Lights ON!!

Enchanted Skies

Dave Finley (public affairs officer for the National Radio Astronomy Observatory) gives a fireside talk during the 2002 Enchanted Skies Star Party
Dave Finley (public affairs officer for the National Radio Astronomy Observatory) gives a fireside talk during the 2002 Enchanted Skies Star Party

Last year we took our vacation in New Mexico. Along with hiking around Chaco Canyon, we decided to attend the Enchanted Skies Star Party, held each year in Socorro (about 70 miles south of Albuquerque). This is one of the most laid-back amateur astronomy get-togethers in the U.S. I almost hate to give it more publicity because I don’t want to see it become a huge thronging mass of people — but my more noble side wins out because I think it’s a great opportunity for folks to travel to a dark-sky site, hear some great talks, and see some great skies!

I’ve been to ESSP four or five times now and each time is a great experience. Twice I was offered the opportunity to give a science lecture, and the other times I just went for the sheer joy of it all. The lectures are all given at the New Mexico Tech campus and range from “getting started” type talks to presentations from astronomers about the latest in “Big Science.” The stargazing part of the party is divided up between the campus observatory and a ranch area about 20 miles out of town. In both cases, the skies are wonderful and the stargazing is a lot of fun.

The Saturday night barbecue and sing-along under the stars is a big hit. Last year we stayed out until about midnight before heading back to the hotel, but many folks lingered on until the very wee hours, sucking in that big, dark, wonderful sky. If you’re looking for something to do that’s different, gets you to someplace you haven’t been before, and want some sublime memories of scenery and dark sky, this is the star party for you. I just got a mailing from the organizers and it looks like this year’s meeting will be as great as 2002’s was! Check it out!

Exploring Science and the Cosmos

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