Exploring Extremes of Earth's Magnetic Field
The Earth's magnetic field varies on many time scales, waxing and waning in strength, and periodically completely reversing direction. The geologic record of these variations provides important information on the history of our planet. Join Scripps Oceanography geoscientist Jeff Gee for a fascinating glimpse into his fieldwork in paleomagnetism from autonomous aircraft measurements over the open ocean to exploration of rock exposures in remote regions of Antarctica.
|Exploring Extremes of Earth's Magnetic Field|
|Earth's Magnetic Field from Satellites to Reversals
How is Earth's magnetic field important to making our planet habitable? Where does it come from, and how quickly does it change?
|Naked Science: Earth's Core
Thousands of miles below the surface, Earth's core generates a protective magnetic shield around the planet. Now, scientists have uncovered evidence that this armor could be fading.
|Magnetic Storm - Earth's Invisible Shield
Could we be heading for a demagnetized doomsday that will leave us defenseless against the lethal effects of solar wind and cosmic rays? "Magnetic Storm" looks into our potentially unsettling magnetic future.