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18 November 2022 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Navil Hill Planetarium
At the Naval Hill Planetarium, one of only two in the world that is located in a game reserve in the middle of a city, are from the left, front: Bishop Billyboy Ramahlele, Director of Community Engagement, Tony Horn, Dr Molapo Qhobela, Dorah Klaas from UFS Institutional Advancement, Motheo Leeuw, and Prof Matie Hoffman.

Just over 11 years ago, the University of the Free State (UFS), the Mangaung Metro Municipality, and the Department of Small Business Development, Tourism and Environmental Affairs (DESTEA) signed a Memorandum of Understanding that focused on the development and establishment of the Naval Hill Planetarium. In 2016, the partnership was extended to include the establishment of a facility for environmental education adjacent to the planetarium. Thus, the site on Naval Hill, Bloemfontein is now the Centre for Earth and Space.

Recently, colleagues from the UFS and DESTEA, as well as Free State tourism entrepreneurs, gathered at the planetarium and Boyden Observatory to discuss the next step in this partnership – a collaboration to bring astro-tourism to the Free State.

 

Astro-tourism facilities

Tourism Registrar at DESTEA, Motheo Leeuw, said in his welcome address that,in order to increase the number of visitors to the Free State, it is important to work together. “We are creating a new product, that of astro-tourism,” he stated, and requested the tour guides who attended the event to develop an innovative new product for their market.

Speaking on behalf of the UFS, Dr Molapo Qhobela, Vice-Rector: Institutional Change, Strategic Partnerships and Societal Impact, stated that astro-tourism holds enormous potential for this country. He said the UFS is excited to be a partner in this initiative.

Dr Qhobela said he believes the beauty of science can be used to promote astro-tourism. He echoed Leeuw’s sentiment, stating that it is only through partnerships that astro-tourism will become a reality. “If we want to drive astro-tourism, we need to find creative ways to connect with each other,” he stated.

“We must work together to make our home, Bloemfontein, a better place,” he said.

 

A taste of astro-tourism

About 30 delegates, including the UFS, DESTEA, military representatives, and tour guides from Bloemfontein and Clarence, gained first-hand experience of the potential of astro-tourism. They attended a full-dome pre-rendered astronomy show and a presentation on the night sky in the Naval Hill Planetarium, where images were projected onto the planetarium dome, resulting in an immersive experience of the wonder of the universe. The tour guides proceeded on a game drive in the Franklin Game Reserve on Naval Hill.

Later in the afternoon – after enjoying a sunset view of the environment at the Boyden Observatory – guests were introduced to the observatory, including its telescopes and the Astronomy Museum. Prof Matie Hoffman, Dr Mart-Mari Duvehage, and Dawid van Jaarsveldt from the Department of Physics at the UFS, were on hand to conduct the tour of the observatory, and Bishop Billyboy Ramahlele, Director of Community Engagement, hosted the guests.

Tony Horn, a tour guide from Bush Junkies Adventure Safaris – one of the guests at the event – is optimistic about the potential of this initiative. He said he will bring visitors to Boyden and the planetarium to experience the attractions.

 

The Two-Observatories Project

The Boyden Observatory and the Naval Hill Planetarium are known as the Two-Observatories Project, which will be the focus of astro-tourism in the Free State. Focus areas of the Two Observatories Project are science communication and education, research, astronomy heritage, and the environment. The project therefore has great potential to attract tourists.

According to Prof Hoffman, the two observatories work in synergy to educate and inform citizens about the natural sciences. They are also important for the display of and communication about South Africa’s astronomical heritage.

In addition to being an active optical research site, Boyden Observatory is ideal for public lectures and star-gazing events. Educational programmes, including observations with telescopes, are also presented at the observatory. An astronomy museum is a major attraction at Boyden.

The Naval Hill Planetarium, also a good venue for public lectures and concerts, offers planetarium shows, including full-dome films. The site also offers a large hall that is primarily used for environmental education. These facilities operate under the banner of the Free State Centre for Earth and Space.

News Archive

To tan or not to tan: a burning issue
2009-12-08

 Prof. Werner Sinclair

“Some evidence exists which implies that sunscreens could indeed be responsible for the dramatic rise in the incidence of melanoma over the past three decades, the period during which the use of sunscreens became very popular,” says Prof. Werner Sinclair, Head of the Department of Dermatology at the University of the Free State. His inaugural lecture was on the topic Sunscreens – Curse or Blessing?

Prof. Sinclair says the use of sunscreen preparations is widely advocated as a measure to prevent acute sunburn, chronic sun damage and resultant premature skin aging as well as skin malignancies, including malignant melanoma. There is inconclusive evidence to prove that these preparations do indeed achieve all of these claims. The question is whether these preparations are doing more harm than good?

He says the incidence of skin cancer is rising dramatically and these tumours are induced mostly by the ultra-violet rays.

Of the UV light that reaches the earth 90-95% belongs to the UVA fraction. UVC is normally filtered out by the ozone layer. UVB leads to sunburn while UVA leads to pigmentation (tanning). Because frequent sunburn was often associated with skin cancer, UVB was assumed, naively, to be the culprit, he says.

Exposure to sunlight induces a sense of well-being, increases the libido, reduces appetite and induces the synthesis of large amounts of vitamin D, an essential nutritional factor. The use of sunscreen creams reduces vitamin D levels and low levels of vitamin D have been associated with breast and colon cancer. Prof. Sinclair says the 17% increase in breast cancer from 1981 to 1991 parallels the vigorous use of sunscreens over the same period.

Among the risk factors for the development of tumours are a family history, tendency to freckle, more than three episodes of severe sunburn during childhood, and the use of artificial UV light tanning booths. He says it remains a question whether to tan or not. It was earlier believed that the main carcinogenic rays were UVB and that UVA merely induced a tan. The increase in UVA exposure could have severe consequences.

Prof. Sinclair says the UV light used in artificial tanning booths consists mainly of pure UVA which are highly dangerous rays. It has been estimated that six per cent of all melanoma deaths in the UK can be directly attributed to the use of artificial tanning lights. The use of an artificial tanning booth will double the melanoma risk of a person. “UVA is solely responsible for solar skin aging and it is ironical that tanning addicts, who want to look beautiful, are inflicting accelerated ageing in the process,” he says.

On the use of sunscreens he says it can prevent painful sunburn, but UVA-induced damage continues unnoticed. UVB blockers decrease vitamin D synthesis, which is a particular problem in the elderly. It also prevents the sunburn warning and therefore increases the UVA dosage that an individual receives. It creates a false sense of security which is the biggest problem associated with sunscreens.

Evidence obtained from the state of Queensland in Australia, where the heaviest and longest use of sunscreens occurred, boasted the highest incidence of melanoma in the world. A huge study in Norway has shown a 350% increase in melanoma for men and 440% for women. This paralleled the increase in the use of UVB blocking sunscreens while there was no change in the ozone layer. It did however, occur during that time when tanning became fashionable in Norway and there was an increase especially in artificial tanning.

Prof. Sinclair says: “We believe that sunscreen use does not directly lead to melanoma, but UVA exposure does. The Melanoma Epidemic is a reality. Sunscreen preparations are not the magical answer in the fight against melanoma and the irresponsible use of these preparations can worsen the problem.”

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
7 December 2009

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