Currently, spacecraft and modules only have two choices for energy production to support the systems and crew–solar and nuclear. Much like on Earth, Constance Adams must assess the advantages and limitations of these energy sources when designing new space modules. For modules close enough to exploit the sun’s energy, such as the International Space Station, the sun provides a free, non-polluting, inexhaustible energy source. With her forward thinking, Constance strives to design new habitats for future space modules that can best exploit this supply of energy.

In this activity, you will have the opportunity to observe and analyze the components of a solar lawn light. After becoming familiar with these devices, you will work to investigate factors that influence and affect their operation during the day and night.