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Fading Heavens, Real and Projected

By Mr. Christopher Graney  |  25 May 2024  |  Sacred Space Astronomy

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There is less science in the Bluegrass State (Kentucky, USA) these days. The University of Louisville’s Rauch Planetarium closed to the public during the pandemic. It has never re-opened. Likewise for Eastern Kentucky University’s Hummel Planetarium. These were the two largest planetariums in Kentucky. The Rauch (above left) dates to 1962; the Hummel (above right) to 1976.

Not so long ago, these planetariums were being outfitted with new digital technology. In a December 28, 2016 article in the Richmond Register, Kim Kobersmith wrote that “Hummel Planetarium… is the largest planetarium in the state and is on the leading edge of technology”. In a June 25, 2013 story, Louisville Public Media’s Rick Howlett reported on the Rauch reopening with an upgraded digital projection system, after being closed for the system’s installation.

But such systems are hard to keep running. Jill Price, associate vice president for outreach and engagement at EKU, told the Lexington Herald-Leader’s Monica Kast in 2023 that a planetarium is “a very expensive facility to maintain…. It’s a very unique structure, and technology out-dates so quickly.”

Not all planetarium technology, actually. Seymour Planetarium at the Springfield Science Museum in Massachusetts is using the same “star ball” projector that was installed in 1937. That is a simple piece of equipment — an opaque ball with a light inside and holes and lenses to project stars onto the planetarium dome.

Perhaps stars will again be projected onto the domes of the Rauch and Hummel. UofL says on their web site that they will make a decision about that in the summer. But even if the planetariums eventually reopen, the fact is that for years now Kentucky has been without these two big tools for science education.

How do we sustain education, and especially education like is found in a planetarium? It’s easy with job training or career education. The economy needs trained workers. It’s a matter of money, and money makes stuff happen. But knowing something about the night sky does not offer much monetary payoff.

Monetary pay-off and cool technology both play big roles in US education. We often hear that our society is becoming increasingly secular; without something clearly higher to direct education toward, monetary concerns and appealing technology can easily carry the day. Perhaps that is why we not only have planetariums that operated for a half-century now closed, but also why our night skies are awash with waste light, such that we cannot see the glory of the real stars.

When I see your heavens, the work of your fingers, the moon and stars that you set in place — what are humans that you are mindful of them, mere mortals that you care for them? (Ps 8:4-5)

The heavens declare the glory of God; the sky proclaims its builder’s craft. (Ps 19:1)

That kind of thinking won’t cross folks’ minds if they can’t see the thing the Psalmist is talking about. It’s not that planetarium closings are a sign of some great, secular conspiracy; rather, they, and the washing out of the night sky, reflect what we all now value, and don’t value, together as a whole. The night sky offers no high-tech flash. It is unlikely to offer a monetary payoff. It is more likely to help us think about what might have made it, and about our relationship to that Maker (kind of like that Feast of the Annunciation eclipse last month).

Planetariums, built to keep running, help with that thinking. So does night lighting that is directed downward, and limited to only what is needed in terms of intensity and “on” times. Let’s give ourselves more opportunity to hear what the heavens declare, through a little more science in the Bluegrass.


This post originally ran as a “Science in the Bluegrass“ column
in the Archdiocese of Louisville’s newspaper, The Record.

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