Some interesting stories and of September

27 Sep 2020

At https://phys.org/news/2020-09-venus-upstart-company-nasa-life.html ... Peter Beck of Rocket Lab has set is sights on launching a low cost probe into the atmosphere of Venus after learning of the discovery of phosphine in Venusian clouds. His copany puts small satellites into orbit but now he wants to expand his horizons. A small spacecraft and an even smaller probe of the atmosphere of Venus. The prize is the possibility of finding evidence of life on Venus.

At https://tallbloke.wordpress.com/2020/09/26/the-strange-storms-on-jupiter/ ... which is a revival of a story that broke a few weeks ago concerning the discovery of hexagonal shaped storms at the south pole of Jupiter by the Juno Mission. First noticed by NASAs Juno Mission in 2019 the storms have intrigued commentators across the Net. They are thought ot be analogous with earth's hurricanes and typhoons but take a peculiar hexagonal shape. Hurricanes, for example, build up in the tropical and subtropical Atlantic and then come up against the coast of North America, usually in summer and autumn months. The drift is northwards. On Jupiter they progress towards the poles but on earth we have continental land masses which they interact with, and eventually dissipate. On earth they run out of water, in the Atlantic and the Pacific, but on Jupiter there is no such handicap. They are able to migrate fully to the poles. At the south pole they seem to then form geometric shapes.

Experiments in the late 19th century by Alfred Meyer are interesting as he found that when floating large circular magnetis in a pond of water they would spontaneously rearraneg themselves into geometric configurtions. The shape depended on the number of magnets. Lord Kelvin used Meyer's observations to develp a mathematical model to explain the magnets behaviour.

Ora Bada Crater. Gary sent in this link to www.dailymail.co.uk/sciencetech/article-8769861/ ... a massive meteor crater has been found by gold prospectors in Australia, dating from the Cretaceous, in the late dinosaur era. It is three miles across. No mean beast. Shoot cones were found also. These are created under high pressure and high velocity shock waves, as produced in an impact event.