For an in-depth look at the mission ahead for the four Magnetic Multiscale observatories, download the MMS press kit (PDF). It’s full of details about the mission’s science objectives, the spacecraft and their instruments, and the key organizations that made the mission possible.
Right now, MMS remains attached to the Centaur upper stage during this 59-minute coast phase. After a second Centaur engine burn, the observatories will be released one by one, five minutes apart.