Japanese researchers say they are closing in on the mystery of Earth’s “missing” geomagnetic polarity reversals, identifying where they believe scientists should look for evidence of their unusual ...

Add Yahoo as a preferred source to see more of our stories on Google. If you've never heard of a solar storm or geomagnetic storm, chances are you'll learn about those really quickly this weekend.

5 million years ago. This southeastern Oregon location provides one of the most startling examples of how quickly Earth's magnetic field can flip. A series of overlapping Miocene-age basaltic lava ...