Near Earth objects

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Near Earth objects

A Near-Earth Object (NEO) is generally defined as an asteroid or comet that approaches our planet less than 1.3 times the distance from Earth to the Sun (the​ ... ,NASA's Near-Earth Object (NEO) web-site. Data related to Earth impact risk, close-approaches, and much more. ,Near-Earth objects (NEOs) are asteroids or comets of sizes ranging from metres to tens of kilometres that orbit the Sun and whose orbits come close to that of ... ,A constantly up to date list of the predicted close approaches of Earth with of NEO Asteroids happening now and in the future. ,A near-Earth object (NEO) is any small Solar System body whose orbit brings it into proximity with Earth. By convention, a Solar System body is a NEO if its ... ,2019年3月28日 — The key element of NASA's Planetary Defense effort is the Near-Earth Object (​NEO) Observations Program, which is composed of projects to ... , ,Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter ... ,NASA's Near-Earth Object (NEO) web-site. Data related to Earth impact risk, close-approaches, and much more. ,Near-Earth Objects (NEOs) are asteroids and comets in orbits that bring them into the inner solar system ...

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Near Earth objects 相關參考資料
Asteroid Watch - NASA

A Near-Earth Object (NEO) is generally defined as an asteroid or comet that approaches our planet less than 1.3 times the distance from Earth to the Sun (the​ ...

https://www.jpl.nasa.gov

Center for NEO Studies

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

https://cneos.jpl.nasa.gov

ESA - Near-Earth Objects - NEO Segment

Near-Earth objects (NEOs) are asteroids or comets of sizes ranging from metres to tens of kilometres that orbit the Sun and whose orbits come close to that of ...

https://www.esa.int

Near Earth Objects Upcoming Close Approaches ...

A constantly up to date list of the predicted close approaches of Earth with of NEO Asteroids happening now and in the future.

https://theskylive.com

Near-Earth object - Wikipedia

A near-Earth object (NEO) is any small Solar System body whose orbit brings it into proximity with Earth. By convention, a Solar System body is a NEO if its ...

https://en.wikipedia.org

Near-Earth Object Observations Program | NASA

2019年3月28日 — The key element of NASA's Planetary Defense effort is the Near-Earth Object (​NEO) Observations Program, which is composed of projects to ...

https://www.nasa.gov

Near-Earth Objects - UNOOSA

https://www.unoosa.org

NEO Basics - CNEOS - NASA

Near-Earth Objects (NEOs) are comets and asteroids that have been nudged by the gravitational attraction of nearby planets into orbits that allow them to enter ...

https://cneos.jpl.nasa.gov

NEO Earth Close Approaches

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

https://cneos.jpl.nasa.gov

Twenty Years of Tracking Near-Earth Objects

Near-Earth Objects (NEOs) are asteroids and comets in orbits that bring them into the inner solar system ...

https://www.jpl.nasa.gov