10.27.10 - Two NASA spacecraft have been assigned a new mission after successfully completing their original science objectives earlier this year.
03.04.08 - For reasons not fully understood, auroras are more common in the spring than at other times. The five-craft THEMIS fleet may help scientists determine why.
THEMIS has made three important discoveries about spectacular eruptions of Northern Lights called "substorms" and the source of their power.
07.16.07 - Status report on the THEMIS spacecraft as of July 16, 2007.
02.17.07 - NASA's Time History of Events and Macroscale Interactions during Substorms mission successfully launched Saturday, Feb. 17 at 6:01 p.m. EST from Pad 17-B at Cape Canaveral.
02.16.07 - The launch of NASA's THEMIS spacecraft aboard a Delta II rocket was scrubbed tonight six minutes before launch due to out-of-limit upper level winds.
02.09.07 - THEMIS was transported from Astrotech payload processing facility to Pad 17-B. The final major test, the Flight Program Verification, was successfully conducted on Feb. 6.
02.02.07 - At the Astrotech payload processing facility near Kennedy Space Center, transportation of THEMIS to Pad 17-B was rescheduled from today until early Saturday morning.
01.26.07 - At the Astrotech payload processing facility near KSC, engineers and technicians are preparing the THEMIS spacecraft for mating to the upper stage booster, planned for Monday.
01.19.07 - At the Astrotech payload processing facility near Kennedy Space Center, engineers and technicians successfully completed spin-balance testing of THEMIS on Jan. 12.
01.17.07 - THEMIS is set to venture into space and help resolve the mystery of what triggers geomagnetic substorms.
01.12.07 - At the Astrotech payload processing facility near Kennedy Space Center, engineers finished installing the five THEMIS probes onto the spacecraft's probe carrier on Wednesday.
01.11.07 - NASA will host a media teleconference on Wednesday, Jan. 17, at 1 p.m. EST to discuss the THEMIS mission to study auroras.