 He says after July 4th, traps will be set along the pond perimeter baited with chicken. If any members of the public are interested, you're welcome to join us anytime between 10 and 1, any day in July. Neil Leugenstein, WTOP News. Four NASA volunteers emerged from their ground-based home yesterday in Houston after a year-long mission of living in a simulated Mars environment. The crew took Mars walks, grew and harvested several vegetables, and maintained their equipment and habitat.