Sites of astronomical interest
Tswaing (Soutpan) Meteor Crater
Located about 40km north of Pretoria, west of Hammanskraal, off the M35 Soutpan road. This crater is the result of a meteoritic impact about 220 000 years ago and is 1.1 km in diameter, comparable in size to the much better-known Barringer meteor crater in Arizona, USA. The Tswaing site is controlled by the Northern Flagship Institution (museum). Open to the public, with an interpretative centre.
Robert Groess and Trevor Gould (ASSA Johannesburg Centre) visited Tswaing in September 2005. Read Robert's account and browse his photographs of the trip.
The Hoba Meteorite is an iron-nickel meteorite located on a farm 18 km from Grootfontein in northern Namibia. It weighs about 60 tons and is claimed to be the largest in the world. It was declared a National Monument in 1920. Open to the public.
The Vredefort Structure is currently regarded as the biggest and oldest clearly visible impact structure on Earth, caused by an asteroid some 10 kilometres in diameter. The original crater is estimated to have been 250–300 kilometres in diameter.