Geneticists estimate that migration from Africa to South-East Asia and Australia took place as recently as 60,000 years ago. But Dr Michael Petraglia, of Oxford University, and colleagues say stone artefacts found in the Arabian Peninsula and India point to an exodus starting about 70,000 to 80,000 years ago – and perhaps even earlier. Petraglia, whose co-workers include Australian and Indian researchers, presented his ideas at the British Science Festival, which is hosted this year at Aston University. “I believe that multiple populations came out of Africa in the period between 120,000 and 70,000 years ago,” he said. “Our evidence is stone tools that we can date.” http://www.bbc.co.uk/news/science-environment-11327442
Author: James Watson
Great ‘real’ story.
It is a follow-up study to the University of Bergen team’s discovery of the microscopic tunnels and pits first published in 2004.
The earliest plants to have colonised land have been found in Argentina. The discovery puts back by 10 million years the colonisation of land by plants, and suggests that a diversity of land plants had evolved by 472 million years ago. http://news.bbc.co.uk/earth/hi/earth_news/newsid_9079000/9079963.stm
Benoit Mandelbrot, who discovered mathematical shapes known as fractals, has died of cancer at the age of 85.
“Mandelbrot, who had joint French and US nationality, developed fractals as a mathematical way of understanding the infinite complexity of nature. ” http://www.bbc.co.uk/news/world-europe-11560101
“A tiny faint dot in a Hubble picture has been confirmed as the most distant galaxy ever detected in the Universe. This collection of stars is so far away its light has taken more than 13 billion years to arrive at Earth.” http://www.bbc.co.uk/news/science-environment-11580789
Audio slideshow: Jurassic woman – “She survived a lightning strike as a child, and it’s suggested that she inspired the tongue-twister “She sells sea shells” – but it was her prolific work on the Dorset beaches, known now as the Jurassic Coast, that earned Mary Anning her place in scientific history. Her fossil discoveries 200 years ago near Lyme Regis – are being celebrated by the Royal Society, The Natural History Museum and the town’s museum. With novelist Tracy Chevalier, who has written extensively about the early fossil-hunter, take a look back at Mary Anning’s remarkable life.” http://www.bbc.co.uk/news/science-environment-11590505
Early date for Chinese human fossils – “Modern humans could have reached East Asia much earlier than believed, according to new evidence. An international team analysed fossil teeth and part of a jaw unearthed in southern China in 2007. In the journal PNAS, the scientists say the fragments belonged to a “modern” human who lived 100,000 years ago.” http://www.bbc.co.uk/news/science-environment-11618814
“Researchers at the Large Hadron Collider (LHC) are getting set to create the Big Bang on a miniature scale.” http://www.bbc.co.uk/news/science-environment-11687912
“The Large Hadron Collider has successfully created a “mini-Big Bang” by smashing together lead ions instead of protons.” http://www.bbc.co.uk/news/science-environment-11711228
Admiration & Imagination https://docs.google.com/present/edit?id=0ARJcF_ILInOCZGRjOTdtMmhfMjJjbjZidnJkZA&hl=en
Evolution. Fish to Man. Man’s Debt ToThe Past. https://docs.google.com/Doc?docid=0ARJcF_ILInOCZGRjOTdtMmhfNjNmY21kNXpndw&hl=en
The Prehistoric Mind. How did Prehistoric Man Think? The Primitive Mind. https://docs.google.com/Doc?docid=0ARJcF_ILInOCZGRjOTdtMmhfODJmNnJ4a3ZmNQ&hl=en
“The scale of the delay and cost overrun blighting Nasa’s James Webb Space Telescope has been laid bare by a panel called in to review the project.” http://www.bbc.co.uk/news/science-environment-11731754
“Palaeontologists have identified the oldest known dinosaur embryos, belonging to a species that lived some 190 million years ago. The paper stated that the rather awkward body of the embryos suggested that just like humans, the hatchlings would have required parental care – and if in this case, it would be the earliest known example of parental care.” http://www.bbc.co.uk/news/science-environment-11734616
“Antimatter atoms have been trapped for the first time, scientists say”(&)”Researchers at Cern, home of the Large Hadron Collider, have held 38 antihydrogen atoms in place, each for a fraction of a second.” http://www.bbc.co.uk/news/science-environment-11773791
“Astronomers claim to have discovered the first planet originating from outside our galaxy” http://www.bbc.co.uk/news/science-environment-11775803
Landing on Mars in 2016 Jonathan Amos | 0:59 UK time, Friday, 3 December 2010 http://www.bbc.co.uk/blogs/thereporters/jonathanamos/2010/12/landing-on-mars-in-2016.shtml
“Researchers have developed a simple technique that adds evidence to the theory that the Universe is flat.” http://www.bbc.co.uk/news/science-environment-11810553