Adelaide researchers say they might have found a better way to use anti-inflammatory drugs to prevent breast cancer. The Hospital Research Foundation has identified a protein that causes inflammation and increased breast density in some women, increasing their cancer risk :: Read the full article »»»»
A meteorite estimated to be 4.5 billion years old has been recovered by Perth researchers from a remote part of Lake Eyre in outback South Australia. In a race against time, the geologists dug the 1.7-kilogram meteorite out just hours before heavy rains would have wiped away any trace of it.
The team from Curtin University had been trying to track the fall site since the meteorite was spotted by locals and five remote cameras in late November in the William Creek and Marree areas. But on New Year’s Eve, as heavy rains brewed a downpour, the team found their needle in a haystack. Read the full article »»»»
Global greenhouse gases in the atmosphere have reached an ominous milestone that is unprecedented in human history. The world’s longest measure of carbon dioxide in the atmosphere has reached 400 parts per million for the first time in three million years.
The daily CO2 level is measured at the Mauna Loa Observatory in Hawaii, which tracks greenhouse gases in the Northern Hemisphere. The level has been measured at Mauna Loa since 1958, with data before that taken from ice core samples.
The last time it reached this level, temperatures rose by between three and four degrees and sea levels were between five and 40 metres higher than today. Still sceptical? :: Read the full article »»»»
Scientists from around the globe are meeting in Britain to consider a proposal that could eventually see Greenwich Mean Time relegated to a footnote in history. For more than 120 years Greenwich Mean Time – GMT – has been the international standard for timekeeping, but it is now under threat from a new definition of time itself based not on the rotation of the Earth, but on atomic clocks. In January 2012 the International Telecommunication Union will meet in Geneva to vote on whether to adopt the new measure, despite protests from Britain.
The two-day meeting of about 50 experts at a country house north-west of London, under the aegis of the prestigious Royal Society, on Thursday and Friday will look at some of the issues involved. Predictably the question has hurt Britain’s national pride – particularly when the British believe their old rivals France are leading the push to change from GMT to the new time standard. Read the full article »»»»
There is new evidence that the sun’s UV rays are even more damaging than previously thought.
The sun emits two kinds of UV rays to the earth’s surface: UVA and UVB. It had been thought that those rays do not damage the deeper layers of the skin as much as they damage the top layers. New research from Kings College London has found that is the case for UVB rays, but not for UVA rays. The study has found UVA rays are more carcinogenic than previously realised – a finding scientists say underscores how important it is to limit exposure to the sun and to tanning studios. The study was led by Antony Young, Professor of experimental photobiology at King’s College. Read the full article »»»»