When purchasing NASA lapel pins always look for the embossing on the back of the pin:

STS-126
NASA
ABemblem.com

to be sure you are getting the NASA authorized emblem from AB Emblems.

STS-126 is the 27th shuttle mission to the International Space Station.

Veteran space flier Navy Capt. Christopher J. Ferguson will command the STS-126 mission aboard Endeavour to deliver equipment to the International Space Station that will enable larger crews to reside aboard the complex.

The mission specialists are Navy Capt. Stephen G. Bowen, Army Lt. Col. Robert S. Kimbrough, Navy Capt. Heidemarie M. Stefanyshyn-Piper and NASA astronauts Donald R. Pettit and Sandra H. Magnus.

Left: Astronauts Heidemarie M. Stefanyshyn-Piper (left), STS-126 mission specialist, and Sandra H. Magnus, Expedition 17/18 flight engineer, prepare for a training session in the Space Vehicle Mockup Facility at Johnson Space Center.

Magnus will join Expedition 17 after launching to the International Space Station on mission STS-126. - Photo Credit, NASA

Magnus will remain on the station, replacing Expedition 17/18 Flight Engineer Gregory E. Chamitoff, who returns to Earth with the STS-126 crew.

Magnus will serve as a flight engineer and NASA science officer for Expedition 18. Magnus will return to Earth on shuttle mission STS-119.

Endeavour will carry a reusable logistics module that will hold supplies and equipment, including additional crew quarters, a second treadmill, equipment for the regenerative life support system and spare hardware.