Near-Earth Asteroids as of December 2025 - NASA Science
NASA's Planetary Defense Coordination Office tracks NASA's planetary defense efforts, near-Earth object close approaches, and other key facts about comets and
science.nasa.govAgency-run effort tracks near-Earth objects and updates trajectory data as new observations arrive, with routine revisions to distances and risk assessments. Recent reporting notes trajectory refinements for near-Earth asteroids and continuous monitoring by space-based networks to refine close-approach predictions over weeks to months. NASA's planetary defense program maintains public updates on new observations and trajectory revisions, stressing that changes come from better data rather than imminent danger. Asteroid tracking continues to support assessments as data accumulate, helping researchers improve predictions over time.