Special Notice: NATIONAL AERONAUTICS AND SPACE ADMINISTRATION is seeking inquiries from companies interested in obtaining license rights to commercialize, manufacture, and market a technology that simulates the effects of microgravity and chronic radiation exposure on cell culture experiments conducted on the International Space Station (ISS). This technology integrates a radiation source with a microgravity-simulating rotating-wall vessel for cell cultures, allowing for the expression of enhanced virulence or otherwise unexpressed biological pathways that could potentially assist in drug development efforts. Interested parties can submit a license application through NASA's Automated Technology Licensing Application System (ATLAS). For more information, visit the NASA Technology Transfer Portal. No follow-on procurement is expected from this notice.