Evidence of an unusually strong solar storm that hit Earth in 660 BCE has been detected in Greenland ice cores—a finding which shows we still have lots to learn about these disruptive events.
Scientists often detect weird sounds in Antarctica, from seismic waves rippling through ice shelves. But a space weather station run by the British Antarctic Survey may hold the most diverse selection of acoustic oddities collected on the frozen continent to date.
Every 100 years or so, our Sun gives off a great big belch that sends an intense wave of charged particles towards Earth. This wasn’t a problem in the past, but our high-tech civilisation is now disturbingly vulnerable to these solar storms. A new study quantifies the economic risks posed…