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  1. Find out the dates, distances, velocities, and magnitudes of near-Earth objects (NEOs) that have approached the Earth since 1900 A.D. Use the table settings to filter and sort the data, and view the close-approach trajectories and uncertainties.

    • Tutorial

      Tutorial - NEO Earth Close Approaches - NASA

    • Introduction

      As they orbit the Sun, Near-Earth Objects occasionally...

    • 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. 1 paź 2024 · Each month, NASA’s Planetary Defense Coordination Office releases a monthly update featuring the most recent figures on NASA’s planetary defense efforts, near-Earth object close approaches, and other timely facts about comets and asteroids that could pose an impact hazard with Earth.

  3. Orbit diagram of current NEOs objects passing close to the Earth. View NEOs in the 3D Solar System Simulator. A constantly up to date list of the predicted close approaches of Earth with of NEO Asteroids happening in the near future.

  4. CNEOS is NASA's center for computing asteroid and comet orbits and their odds of Earth impact.

  5. Near-Earth objects are asteroids and comets with orbits that bring them to within 120 million miles (195 million kilometers) of the Sun, which means they can circulate through the Earth’s orbital neighborhood. Most near-Earth objects are asteroids that range in size from about 10 feet (a few meters) to nearly 25 miles (40 kilometers) across.

  6. science.nasa.gov › solar-system › asteroidsApophis - NASA Science

    Asteroid 99942 Apophis is a near-Earth object (NEO) estimated to be about 1,100 feet (335 meters) across. When it was discovered in 2004, Apophis was identified as one of the most hazardous asteroids that could impact Earth.

  7. 10 gru 2021 · A web-based app that lets you watch and learn about the orbits, characteristics, and missions of thousands of asteroids and comets that approach Earth. Updated twice daily with the latest data, you can zoom in, travel through time, and view animated models of spacecraft encounters.

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