Needs for determining material strengths and bulk properties of NEOs

Near-Earth Objects (NEOs) are now being discovered and followed up at a higher rate than ever before. However, physical characterization of these objects is restricted to their surface properties. For the purpose of mitigation (i.e., to nudge a potentially hazardous object out of its orbit), it is necessary to determine the bulk properties of NEOs, such as material strengths, composition, structure, and moments of inertia. We discuss some of the needs and suggest several experiments to fulfill these requirements. We also urge that NASA, ESA, and other space agencies establish Support Offices for Microgravity Research for Small Solar System Bodies.