THEMIS / ARTEMIS
NASA's THEMIS mission launched five identical probes to determine how energy stored in Earth's magnetotail triggers auroral substorms. The spacecraft combined coordinated electric-field, magnetic-field, ion, and electron measurements with a network of ground observatories; two probes were later redirected to the Moon and continue as the ARTEMIS extension.
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Identity
- Aliases
- THEMISTime History of Events and Macroscale Interactions during SubstormsARTEMISAcceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun
- Name
- THEMIS / ARTEMIS
- Slug
- themis-artemis
- Status
- active
Details
- Astronauts
- -
- Description
- NASA's THEMIS mission launched five identical probes to determine how energy stored in Earth's magnetotail triggers auroral substorms. The spacecraft combined coordinated electric-field, magnetic-field, ion, and electron measurements with a network of ground observatories; two probes were later redirected to the Moon and continue as the ARTEMIS extension.
- Launch Site
- Outcome
- THEMIS completed its primary multipoint investigation and provided direct evidence that magnetic reconnection in Earth's magnetotail initiates auroral-substorm activity. The reassigned ARTEMIS probes became the first spacecraft to operate around the Moon's Lagrange regions and continue measuring the solar wind, lunar environment, and Earth-Moon plasma interactions.
- Program
- Medium-Class Explorers
- Start Date
- 2007-02-17
- Vehicle Families
Links
- Official Url
- https://science.nasa.gov/mission/themis-artemis/
Assets & Meta
- Creation Time
- July 18, 2026 at 15:40:19 UTC
- Updated Time
- July 18, 2026 at 15:40:19 UTC
Other
- Affiliations
- Space Stations
- -
- Vehicles