Stranded NASA astronauts' 'secret' message to the public

Sunita Williams , 59 , and Barry Wilmore , 62 , arrived at the ISS on June 6 and have been stranded there ever since.

Their spacecraft returned to Earth without its crew because it was deemed too risky, forcing them to remain on the space station until they can hitch a ride home on a different return flight.

Their rescue has since been delayed multiple times, sparking public outrage.

President Donald Trump called on Elon Musk to 'go get' them and the astronauts' return date is now set for March 19 or 20 .

Body language expert Judi James has provided analysis after comparing a video streamed in September with a recent interview taken on Thursday .

That mission was originally slated to launch in February , but is now expected to lift off no earlier than March 12 . Thus, the Starliner crew is expected to return around March 19 or 20 . They will leave behind six other astronauts currently on the ISS : NASA astronaut Don Pettit , Russian cosmonauts Alexey Ovchinin and Ivan Vagner , and Chinese astronauts Cai Xuzhe , Song Lingdong and Wang Haoze ..