Terrestrial atom traps and ion traps have found broad application in new and developing technologies such as quantum sensors. They require high vacuum to operate, and the pumps contribute significantly to the size weight and power budget of the sensor. In space, sufficiently far from Earth's atmosphere and under conidtions protected from the Solar wind, the vacuum provided by space should be sufficient to operate outside the spacecraft. In this project, we will test this concept. We will design, construct and test and characterise an atom trap that will operate external to a satellite or cubesat. The trap will be tested in the space simulation vacuum facility at the Advanced Instrumentation and Technology Centre at Mout Stromlo.