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  1. NASA's Near-Earth Object (NEO) web-site. Data related to Earth impact risk, close-approaches, and much more.

    • Tutorial

      Tutorial - NEO Earth Close Approaches - NASA

    • Introduction

      Close Approaches. As they orbit the Sun, Near-Earth Objects...

    • Comets

      Comets - NEO Earth Close Approaches - NASA

    • Uncertainties

      This page describes the limits placed on the Near Earth...

    • Glossary

      au (Astronomical Unit) Definition. The astronomical unit...

    • SB Close Approach

      SBDB Close-Approach Data API. Version: 1.5 (2023 March)...

    • Related Links

      Related Links - NEO Earth Close Approaches - NASA

    • Site Map

      Site Map - NEO Earth Close Approaches - NASA

  2. NASA's Near-Earth Object (NEO) web-site. Data related to Earth impact risk, close-approaches, and much more.

  3. Welcome to NASA Earth Observations, where you can browse and download imagery of satellite data from NASAs Earth Observing System. Over 50 different global datasets are represented with daily, weekly, and monthly snapshots, and images are available in a variety of formats.

  4. Close Approaches. As they orbit the Sun, Near-Earth Objects occasionally approach close to Earth. CNEOS calculates the motion of all NEOs forwards to 2200 A.D. and backwards to 1900 A.D.,and determines the times and distances of the Earth close approaches. The results are tabulated here.

  5. 11 paź 2024 · Every month dozens of NEAs come within 0.05 au of Earth. The following table presents the list of these forthcoming and recent close approaches, with details concerning the encounter circumstances.

  6. Explore the 3D world of Asteroids, Comets and NEOs. Learn about past and future missions, tracking and predicting orbits, and close approaches to Earth.

  7. The Near-Earth Object (NEO) Observations Program is a key element of NASAs Planetary Defense Program, funding efforts to search for undiscovered NEOs using observatories around the world, calculate and refine NEO orbits, determine NEO physical properties and composition, and study NEO deflection and mitigation technologies.

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