As highlighted by human factors experts of the IAA, complementary studies have to be carried out in the field of human sciences to better understand psychological and sociological issues in long duration spaceflight and in isolated and extreme planetary environment. In order to minimize operational risks, efficient communication, problem solving capability and teamwork efficiency, which are considered key behavioural competencies by NASA, have to be tested. It is proposed here to assess the collaboration performance of astronauts in the context of a team spatial orientation task in planetary-analog environments. The experiment was originally designed and tested at the Mars Desert Research Station (crew 185, December 2017). Interestingly, some failures have been observed due to imperfect spatial representation, uncertainties and some communication problems. A similar experiment has been carried out using a virtual environment. N=62 participants have been paired up. Both teammates must collaborate to send a rover to a specific location on a computer simulation of the Mars surface. One person, the astronaut, drives the rover in the virtual environment, orally guided by the captain staying at the base. Every 45 seconds, each participant is asked to mark on his map the location he believes the rover to be. Similarity of teammates spatial shared situational awareness and their accuracy have been used to objectively assess the team performance. Answers to a post-experiment questionnaire have been used to assess perceived communication behaviours of the team. Successful and Unsuccessful teams are compared. Interesting results are presented and discussed. Remarkably, significant differences in terms of Spatial SSA and communication behaviours appeared.