Lakes on Mars

Here is the article to go with the story about rain in the Atacama desert - overflowing crater lakes caused canyons to be cut out on Mars (go to https://phys.org/print461597820.html ...). We are told that billions of years ago water flowed freely across Mars. Former rivers erupted into craters, forming lakes and seas. Sometimes these lakes became so filled with water they overflowed - creating catastrophic flooding events. They go on to sugegst that catastrophic geological processes may have played a major role in shaping the landscape of Mars.

Silica in Space

Robert sent in this interesting link - https://www.dailymail.co.uk/sciencetech/article-6398599/All-glass-Earth-... ... (and www.cardiff.ac.uk/news/view/1371708-glass-made-from-exploding-stars ... ) ... all the glass in the world comes from exploding stars (supernovae). More properly, from sand - as silica sand is what glass is made from (and don't forget the flint and chert, which is a silica). Sand, and therefore glass, has its origin in the hearts of dying stars that exploded during a supernova event (s).

Tenea

At https://www.washingtonpost.com/history/2018/11/13/lost-ancient-city-buil... ... another legacy of the Trojan War is the city of Tenea, first settled by prisoners brought over from Troy (or that is the urban myth). It was located south of Corinth on the neck of land connecting mainland Greece to the Peloponessian peninsular. The city is said to have prospered. However, when the Romans invaded and captured Corinth in 146BC Tenea, it is said, was left unharmed - as the Romans claimed descent from the Trojan, Aeneas.

Dyaks

At https://phys.org/print461583534.html ... the Antarctic Circumpolar Current helps keep the southern continent frozen we are told. It is the strongest ocean current on the planet - stretching from the surface all the way down to the sea bed and entirely encircling Antarctica. It does however have a major bottleneck where it has to funnel its water between the West Antarctic peninsular and Tierra del Fuego.

AD536

At https://www.dailymail.co.uk/sciencetech/article-6397621/Why-536-AD-worst... ... Why AD536 was the worst year ever. Ever and ever. A new report claims a mysterious fog blocked out the Sun and caused crop failures leading to famines - and this was absolutely the worst case of climate change in human history (or words to that effect). Mike Baillie was writing about the AD536 event in the 1990s and 2000s and mainstream didn't take much notice then and are unlikely to now - even though the magic words climate change have been attached to the event.

Big News Story

The big news story this week is of course the discovery of a massive crater under the Greenland ice sheet. Both William and Gary have forwarded links to the story. At https://www.dailymail.co.uk/sciencetech/article-6389645/Nineteen-mile-wi... ... we are told a 19 mile wide crater has been discovered half a mile under the ice sheet - and it is speculated it was caused by a kilometre wide iron meteor. Of course, until the crater is actually investigated nobody really knows - and the same goes for the date it struck.

Aurora Energy

At https://phys.org/print461478434.html ... the study of auroras has revealed a new way of understanding the physics of explosive energy released in space according to new research published in Nature Communications (although precisely what that might be is not forthcoming in the press release). The researchers come from Reading University and University College London. Somewhere in the huge volume of space into which Earth's magnetosphere stretches is a clue to that energy - and the authors set about finding it.

Pristine Tombs

At https://www.youtube.com/watch?v=ZMjdZfpElwA ... news of the discovery of some pristine 5th dynasty tombs at Saqqara, the necropolis of Memphis, from around 2500BC (in old money). Two sarcophagus have yielded mummified scarab beetles. The tombs lie in a buried ridge that has only been partly uncovered.

Climate Change Indus

At https://www.dailymail.co.uk/sciencetech/article-6385185/Climate-change-l... ... we have a post sent in by Gary. The same story is at https://popular-archaeology.com/article/climate-change-likely-caused-mig... ... but with a bit less hype (although it is the authors who are actually stressing the climate change and comparing it to the modern day). Strangely, they seem to think that modern migration from Africa and South America is due to climate change rather than economics.

Plasma Instabilities

At http://spaceweather.com ... (November 14th, 2018). Radio lasers on Jupiter produced as a result of plasma instabilities - sounds almost like the EU. They are produced in the magnetosphere of Jupiter as a result of interaction with it's moon Io. In the normal course of events Jupiter's known radio emissions are weak by the time they reach the vicinity of the earth and only spacecraft in the vicinity of the planet can detect them.