Bennu Near-Earth Objects Asteroid Bennu Sample Analysis Asteroid Deflection OSIRIS-REx Mission Asteroid Composition Sample Return Missions Sample Preservation Apophis Sample Collection Asteroid Sample Collection 16 Psyche Asteroid Sample Analysis Defense Sample Disassembly Composition Bennu Samples Asteroid Samples Organic Matter Origins of the Solar System Potential Threats Psyche Asteroid Lucy Spacecraft Dwarf Planets Dinkinesh Trojans Hayabusa-2 Sample Sharing Mission Psyche Binary Asteroid Systems Impact Events Dimorphos Earth Defense Celestial Objects Impact Collision Space Rocks China Risk Assessment Characteristics Public Awareness Phaethon Mining Didymos Binary Asteroid System Impact Predictions Mineralogy Planetary Science Orbital Mechanics Orbital Path Tracking Temporary Orbits Temporary Satellites OSIRIS-REx Near-Earth Asteroids Origins of Life Autonomous Spacecraft Sample Distribution
Isotopic fingerprints from OSIRIS‑REx material point to chemistry in frozen, irradiated ice rather than water‑based reactions.
