From artificial auroras to radiation belts around Earth: Cold War-era nuclear tests spurred dramatic space weather events

Between 1958 and 1962, the United States and USSR conducted high-altitude nuclear explosion tests, detonating weapons as high as 250 miles above the surface. A new study has found that these tests triggered changes in Earth’s magnetic environment similar to those resulting from naturally-occurring space weather, when the sun sends high-energy particles streaming toward the magnetosphere. The researchers found that these Cold War-era tests gave rise to temporary radiation belts around Earth and even created artificial auroras that could be seen over the equator, instead of the poles……Read More

North Korea nuclear tests could cause eruption of volcano at Paektu Mountain, geologist warns

IMG_0214NUCLEAR tests in North Korea could cause the eruption of a massive volcano that could wipe out populations across Asia and Europe, a Brisbane geology expert has warned. Lloyd Hamilton, a retired associate professor of geology, has written to Foregin Minister Julie Bishop warning her of a super eruption at Paektu Mountain “that would drastically affect the whole world climate”. The volcano lies active in northern North Korea, on the Chinese border. And it is due to explode, after last erupting in 1903. “Professor Hiromitsu Taniguchi from Tohoku University claims that there is a 99 per cent chance of the Mount Paektu volcano in North Korea erupting some time in the next 15 years,” Mr Hamilton wrote in an email to Ms Bishop on Friday…….Read More