The objectives of this project are two-fold. First, it will measure three dimensional organ displacement using ultrasound. In these measurements, taken at zero, one and two g's of acceleration, identified organs will be imaged in three dimensions from data collected. By taking repeated measurements of organ displacement as a result of different gravitational accelerations and comparing the results with images obtained on the ground, this project will characterize organ shift patterns for at least one human-contained organ (for example, the liver), and thereby increasing the predictability of organ location for future endeavors with ultrasound in micro-gravity environments. Additionally, by collecting ultrasound data at specific values of gravitational forces, we hope to identify problems that have not yet been anticipated so that future APL missions involving ultrasound are better able to prepare for space flight. Our second objective is to provide an outreach program. By visiting local schools, publishing a web site, evoking local media coverage, and presenting our findings at a scientific conference, we will reach out to a broad spectrum of people.