National Aeronautics and Space Administration
Goddard Space Flight Center
Sun-Earth Day 2010: Magnetic Storms
IMAGE GALLERY
- AURORA
A view of the aurora photographed by ISS astronaut Don Pettit in 2003 (Pettit: NASA)
NASA Fact
Earth's magnetic poles reverse their geographic locations every 300,000 years. The last event happened 780,000 years ago.