Asteroid mining refers to the possibility of exploiting raw materials from asteroids and other minor planets, including near-Earth objects.

Kitt Peak is famous for hosting the first telescope ( an old 91 cm reflector ) used to search for near-Earth asteroids, and calculating the probability of an impact with planet Earth.

That means, for example, that a near-Earth object approaching the Earth will not collide with the planet after being caught by the Earth's gravity unless the person who defined the NEO's trajectory for Celestia included that effect.

It is unknown what became of Unicron's head when Cybertron was moved into near-Earth orbit during the " Rebirth " episodes, but by the time of Beast Wars it is shown that it no longer orbits the planet.

* 1862 Apollo, a near-Earth asteroid discovered in 1932

* Apollo asteroid, one of a group of near-Earth asteroids named after 1862 Apollo

1566 Icarus ( ) is an Apollo asteroid ( a sub-class of near-Earth asteroid ) that at perihelion comes closer to the Sun than Mercury, i. e. it is a Mercury-crossing asteroid.

* Amor asteroid, a group of near-Earth asteroids named after 1221 Amor

With a group of other inexperienced young men he is assigned to a ship travelling to the asteroid belt where their task is to move an asteroid into near-Earth orbit.

The Aten asteroids are a group of near-Earth asteroids, named after the first of the group to be discovered ( 2062 Aten, discovered January 7, 1976, by Eleanor F. Helin ).

The Amor asteroids are a group of near-Earth asteroids named after the asteroid 1221 Amor.

1221 Amor is the namesake of the Amor asteroids, a group of near-Earth asteroids whose orbits range between those of Earth and Mars.

This meteorite is believed to have been dislodged from a near-Earth orbit by the passing Halley's Comet.

It is intended for integration and checkout at the International Space Station ( ISS ), and would be suitable for deep-space missions from the ISS to and beyond the Moon, including Earth / Moon L1, Sun / Earth L2, near-Earth asteroidal, and Mars orbital destinations.

Magnetic reconnection in the near-Earth magnetotail, producing a disconnected " plasmoid " One possible scenario ( the subject is still debated ) is as follows.

A near-Earth object ( NEO ) is a Solar System object whose orbit brings it into close proximity with the Earth.

Ironically enough, the President's paranoia and opportunism lead to the establishment of a real resistance movement that is organized through narrow-beam radio transmissions from a mysterious alien near-Earth satellite, by a superintelligent, extraterrestrial, but less than omnipotent being ( or network ) named VALIS.

Launching materials from Earth is expensive, so bulk materials for colonies could come from the Moon, a near-Earth object, Phobos, or Deimos.

Transportation of large quantities of materials from the Moon, Phobos, Deimos, and near-Earth asteroids to orbital settlement construction sites is likely to be necessary.

An alternative solution is to bring hydrogen from near-Earth asteroids and combine it with oxygen extracted from lunar rock.

The Torino Scale is a method for categorizing the impact hazard associated with near-Earth objects ( NEOs ) such as asteroids and comets.

Eros is an S-type asteroid approximately 13 × 13 × 33 km in size, the second largest near-Earth asteroid.

and the cosmic dust density is much lower than the near-Earth region.

The asteroid belt is also termed the main asteroid belt or main belt because there are other asteroids in the Solar System such as near-Earth asteroids and trojan asteroids.

Despite these difficulties, utilizing the Yarkovsky effect is one scenario under investigation to alter the course of potentially Earth-impacting near-Earth asteroids.

( also written ( 89959 ) 2002 NT7 ) is a near-Earth object ( NEO ) with a diameter of 1. 2 miles ( 2 kilometers ) that became the first object observed by NASA's NEO program to be assigned a positive rating on the Palermo Technical Impact Hazard Scale, for a potential impact on February 1, 2019.

The effect is caused by the non-concentricity of the Earth and its magnetic dipole, and the SAA is the near-Earth region where the Earth's magnetic field is weakest.

Space weather is the concept of changing environmental conditions in near-Earth space or the space from the Sun's atmosphere to the Earth's atmosphere.

The impact speed of a long-period comet would likely be several times greater than that of a near-Earth asteroid, making its impact much more destructive ; in addition, the warning time is unlikely to be more than a few months.

" Spaceguard " is the name for these loosely affiliated programs, some of which receive NASA funding to meet a U. S. Congressional requirement to detect 90 % of near-Earth asteroids over 1 km diameter by 2008.

The Near Earth Asteroid Rendezvous-Shoemaker ( NEAR Shoemaker ), renamed after its 1996 launch in honor of planetary scientist Eugene M. Shoemaker, was a robotic space probe designed by the Johns Hopkins University Applied Physics Laboratory for NASA to study the near-Earth asteroid Eros from close orbit over a period of a year.

* 1898 – Carl Gustav Witt discovers 433 Eros, the first near-Earth asteroid to be found.

Astronomers use astrometric techniques for the tracking of near-Earth objects.

While conducting a program of observations designed to uncover near-Earth objects, the Shoemakers and Levy discovered Comet Shoemaker – Levy 9 on the night of March 24, 1993 in a photograph taken with the Schmidt telescope at the Palomar Observatory in California.

The NEAR Shoemaker mission in 2000 orbited the large near-Earth asteroid 433 Eros, and was even successfully landed there, though it had not been designed with this maneuver in mind.

The Japanese ion-drive spacecraft Hayabusa in 2005 also orbited the small near-Earth asteroid 25143 Itokawa, landing on it briefly and returning grains of its surface material to Earth.

A near-Earth asteroid estimated at 10 meters diameter explodes over the Mediterranean Sea between Greece and Libya.

The near-Earth part snaps back earthwards, energizing its particles and producing Birkeland currents and bright auroras.

They include a few thousand near-Earth asteroids ( NEAs ), near-Earth comets, a number of solar-orbiting spacecraft, and meteoroids large enough to be tracked in space before striking the Earth.

Some near-Earth asteroids ' orbits intersect that of Earth's so they pose a collision danger.

As of 2011, 911 of the largest (> 1 km diameter ) near-Earth asteroids have been found, with an estimate of 70 yet to be found.

Ample quantities of all the necessary materials, such as solar energy and water, are available from or on the Moon, Mars, near-Earth asteroids or other planetary bodies.