NASA scientist are planning to build or develop an expandable habitat for the astronauts. On March 30, NASA unveiled the BEAM(Bigelow Expandable Activity Module) the latest addition that will let astronauts to attach to the space station's back and inflate to twice its original size.

According to the space agency, this technology can be easily transported to space without consuming more storage space on spacecraft and it is helpful as it protect from cosmic and ultraviolet radiation.

BEAM will remain affixed to ISS for 2 years and  there are chances that similar structures could also be used for future lunar or Martian trips. 

NASA is all set to launch a BEAM unit on the eighth commercial resupply mission to ISS.