Geotail Stories

After 30 years in orbit, mission operations for the joint NASA-JAXA Geotail spacecraft have ended, after the failure of the spacecraft’s remaining data recorder. Since its launch on July 24, 1992, Geotail orbited Earth, gathering an immense dataset on the…

Scientists have been studying the near-Earth environment for the better part of a century, but many mysteries — like where the energetic particles that pervade the area originate and become energized — still remain. In a new type of collaborative…