Looking Up - 13 Sept 23 - What is a Silent Barker?
What is a Silent Barker? Good pub quiz question. It's a special space mission designed to keep an eye on the behaviour of satellites not belonging to the United States, in geosynchronous orbit. Silent Barker was launched last Sunday, Kechil gives us the lowdown.
Matter does escape from black holes, in million-light-year-long Jedi lightsaber type structures called relativistic jets, which stretch up to 10 times longer than our Milky Way galaxy. These things continue to amaze scientists.
Professor John Compton talks to Kechil about his latest book: Interpreting Earth, A History of Geology through Encounters with Table Mountain. It is full of the history of astronomy and geological exploration in The Cape, and contains many lovely illustrations. It is obtainable by visiting the website https://www.johnscompton.com/ and from…
The worthy and wonderful Sky Guide Southern Africa 2024 is now available in bookshops. You can see a review here: https://assa.saao.ac.za/ and if you scroll down a bit, on the facebook site here: https://www.facebook.com/Astrosocsa. How to buy it, you can find here: https://www.penguinrandomhouse.co.za/book/sky-guide-2024/9781775848677 Also, something about SpaceX's Starship test flight…