A haunting audio/visual representation of a geomagnetic storm

Geomagnetic storms are probably most famous for generating especially vibrant aurorae — some of the most breathtaking natural light displays on Earth. But these storms also give rise to all manner of electromagnetic interference across the radio spectrum — interference that gets picked up and measured by equipment… »12/08/11 10:20am12/08/11 10:20am

NASA's IBEX Ready to Measure the Edges of Our Solar System

A NASA mission to measure and study the mysterious edge of the solar system is underway this week. The Interstellar Boundary Explorer (IBEX) is one of the low-cost "Small Explorers" missions - it can study the termination shock area of our solar system without even leaving Earth's orbit. How will it manage that? By… »10/20/08 1:40pm10/20/08 1:40pm