Washington, May 10 : NASA astronaut Mark Polansky, commander of the next space shuttle mission to the International Space Station (ISS) in June this year, is sharing updates about his training and flight on social networking website Twitter.

Polansky, a New Jersey native and former Air Force test pilot, will command the space shuttle Endeavour on mission STS-127, a flight targeted for launch June 13 to deliver the final portions of the space station's Japanese laboratory.