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19 November 2024 | Story Pat Lamusse | Photo Supplied
Space and satellites 2024
During the visit to the Naval Hill Planetarium, were from the left, Dr Mart-Mari Duvenhage and Prof Matie Hoffman from the UFS Department of Physics, Consul General Stephanie Bunce and Vanessa Toscano from the US Consulate, and Dinah Mangope from the Department of Physics.

A delegation from the United States (US) Consulate General in Johannesburg, including Consul General Stephanie Bunce and Public Affairs Officer, Vanessa Toscano, visited the Bloemfontein Campus of the University of the Free State (UFS). Consul General Bunce met with the acting Vice-Chancellor and Principal of the UFS, Prof Anthea Rhoda, and the Dean of the Faculty of Natural and Agricultural Sciences, Prof Paul Oberholster. The US delegation also visited the Naval Hill Planetarium.

The UFS recently received a grant from the US Embassy to fund a project to promote science education by highlighting the role of satellites in our lives. Colleagues from the Department of Physics had the opportunity to demonstrate first-hand how the planetarium technology will be used to implement the project, which poses the question – what if something happens in space that interferes with the thousands of satellites we use for communication, weather prediction, navigation, banking … surveillance?

Thanks to this grant, the UFS will explore these questions and contribute to space situational awareness (SSA) and space domain awareness (SDA). SSA involves knowledge about the orbits of spacecraft and space debris. SDA refers to the knowledge and understanding of all activities occurring within the space domain.

There are currently at least 10 000 active satellites in Earth orbit, most of which are in low Earth orbit (LEO). However, in addition to satellites, there are well over 45 000 objects larger than 10 cm in orbit, including more than 35 000 pieces of space debris, such as dead satellites, rocket bodies, and pieces from breakups and collisions. Since 1991, there have been at least six unintentional collisions between active satellites and space debris.

Space turned out to be not as big as once thought, especially not in low Earth orbit (LEO – altitude less than 2 000 km). To make things worse, there are plans to launch up to 100 000 new satellites into LEO over the next decade.

Prof Matie Hoffman from the UFS Department of Physics notes, “We live in an era when the space economy is growing fast and the number of objects in Earth orbit, including satellites and space debris, is increasing rapidly. This poses risks to operational satellites. Recent publicity around Elon Musk’s Starlink satellites has generated additional interest around this topic. It is important to raise awareness of the challenges, which will allow scientists to mitigate them.”

The project will involve expertise in optical satellite observations from the University of Michigan through Prof Patrick Seitzer, international patron of the Friends of Boyden Observatory, and the American Museum of Natural History (AMNH). The grant will fund planetarium upgrades that will enable education on space and satellites, as well as optical satellite observations from Boyden Observatory. Beneficiaries will include learners, higher education institutions (both locally and in the US), and the public. South African project partners will be the South African National Space Agency (SANSA), the Future African Space Explorers’ STEM Academy (FASESA), and satellite-related companies in South Africa.

The Boyden Observatory is ideally situated to provide valuable optical satellite observations in an area of the sky that is not accessible from existing satellite observing facilities, especially for objects in LEO. In fact, the first observation of space debris in geosynchronous orbit was from Boyden Observatory in 1967.

The project will be rolled out from the end of 2024, harnessing facilities at both Boyden Observatory and the Naval Hill Planetarium.

News Archive

UFS to celebrate Darwin Year
2008-11-10

The University of the Free State (UFS) will next year be celebrating Darwin Year with a comprehensive programme in which many of its departments will take part. The programme is spearheaded by the Faculty of Natural and Agricultural Sciences, in cooperation with the National Museum.

“Next year it will be 200 years since the birth of Charles Darwin and 150 years after the publication of the first edition of his famous book ‘On the Origin of Species’”, says Prof. Jo van As, chairperson of the organising committee and head of the Department of Zoology and Entomology at the UFS.

“The programme aims to portray the influence of Darwin’s theory of evolution on various fields in the natural and agricultural sciences. It will start in February 2009 and end a year later in February 2010. We see this as a good opportunity to promote science in its broadest context,” says Prof. Van As.

According to Prof. Van As a scientific lecture programme on evolution and its impact on various fields will be presented on the Main Campus of the UFS in Bloemfontein on a monthly basis throughout next year. These will include topics such as the mechanisms of evolution: heredity and natural selection, extinction, the start of agriculture, human demography, human impact and the resistance to HIV/Aids antibiotics. The theme of the lecture programme is “The Story of Life”.

A stage play to commemorate the life of Darwin and celebrate his contribution to the understanding of life will also be performed during the Volksblad-kunstefees.

The National Museum will host different events and exhibits. “They will participate in the programme presented at the UFS, present temporary exhibitions to coincide with the programme on campus and also present their own events,” says Prof. Van As.

More information about the programme can be obtained from Ms Isabel Human at 051 401 2427 or humanci.rd@ufs.ac.za.


Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
10 November 2008
 

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