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MMS Launched on March 12, 2015 at 10:44pm.

MMS Launched on March 12, 2015 at 10:44pm.
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Magnetospheric Multiscale (MMS) Mission Weekly Report – July 9, 2015

Mission Phase: Phase D-Commissioning

  • MMS instruments have been activated and commissioning activities are resuming following exit of the long eclipse period.
  • MMS successfully executed all procedures during the leap second event introduced on June 30.
  • MMS completed a major milestone with the planned execution of maneuvers to start MMS formation flying in a 160 km spaced tetrahedron.


06.30.15NASA Signs Scientific and Education Agreements with Brazil
06.05.15NASA Scientist to Discuss “Understanding Magnetic Storms” at…
04.28.15The Fearsome Foursome: Technologies Enable Ambitious MMS…
04.22.15NASA Goddard Team Sets High Flying Record with Use of GPS
03.13.15NASA Spacecraft in Earth's Orbit, Preparing to Study Magnetic…
03.16.15MMS: Five Years, Four Spacecraft, Thousands of Inspired…
03.13.15Key Tests At NASA's Marshall Space Flight Center Lab Ensure…
03.12.15Launch Begins MMS Mission in Spectacular Fashion
03.11.15Superfast Sensors for New MMS Mission
03.10.15NASA to Investigate Magnetic Explosions

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All 4 Spacecraft

All 4 MMS spacecraft  disassembled.Look at some photos of the MMS spacecraft getting stacked and ready for environmental tests. Although they will be disassembled again later, these images are a preview of what will be the final flight configuration of the MMS fleet.
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Observatory Integration

OBS3 image 2

MMS Spacecraft in formation

Earth’s magnetosphere
as a laboratory to study
the microphysics of
magnetic reconnection

Related Sites


This animation shows the orbits of Magnetospheric Multiscale mission.

MMS Orbit Animation

This animation shows the orbits of Magnetospheric Multiscale (MMS) mission, a Solar Terrestrial Probes mission comprising of four identically instrumented spacecraft that will study the Earth’s magnetosphere.

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