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

The near-Earth object was the first near-Earth object detected by NASA's latest NEO program to be given a positive rating on the scale of 0. 06, indicating a higher-than-background threat.

( 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.

It shall be the goal of the Survey program to achieve 90 % completion of its near-Earth object catalogue ( based on statistically predicted populations of near-Earth objects ) within 15 years after the date of enactment of this Act.

Other near-Earth object tracking programs include Near-Earth Asteroid Tracking ( NEAT ), Lowell Observatory Near-Earth-Object Search ( LONEOS ), Catalina Sky Survey, Campo Imperatore Near-Earth Objects Survey ( CINEOS ), Japanese Spaceguard Association, and Asiago-DLR Asteroid Survey.

The impact of a massive object, such as a spacecraft or another near-Earth object, is another possible solution to a pending NEO impact.

This led to a US $ 3 million annual budget for programs like Spaceguard and the near-Earth object program, as managed by NASA and USAF.

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.

The LINEAR project began operating a near-Earth object ( NEO ) discovery facility in 1996 using a aperture telescope designed for the Air Force Space Command's Ground-based Electro-Optical Deep Space Surveillance ( GEODSS ).

Geographos is a Mars-crosser asteroid and a near-Earth object belonging to the Apollos.

The asteroid Adonis is a real object, but despite being classed as a near-Earth asteroid, it never comes between the Earth and the Moon.

It was ranked a one on the Torino Scale of impact risk, and was the only near-Earth object to be ranked higher than zero ( the scale is 0 – 10 ) until it was joined by at level one in November 2004, and then when 99942 Apophis ( then known only by its provisional designation ) was temporarily assessed at level four in December 2004.

The near-Earth object has the highest relative velocity to the Earth ( 282, 900 km / h ) of objects that come within 0. 5 AU of the Earth .< ref name = velocity > ( sorted by descending relative velocity, dist < 0. 5AU

In an extreme case of precovery, an object was discovered on December 31, 2000, designated 2000 YK < sub > 66 </ sub >, and a near-Earth orbit was calculated.

( also written ( 68950 ) 2002 QF15 ) is a near-Earth object that will come as near as 7. 5 Gm (. 05 AU ) to the Earth on May 18, 2044.

Its aim echoes that of The Spaceguard Foundation and other spaceguard movements: to protect the Earth's environment from a disastrous near-Earth object ( NEO ) collision by studying and observing the NEOs.

The term Spaceguard loosely refers to a number of efforts to discover and study near-Earth objects ( NEO ).

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

The near-Earth minor planet ( 8176 ) _1991_WA in the Apollo group is nicknamed Booerhaave in his honor.

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.

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.

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

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.

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.

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 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 Arjuna asteroids are a class of near-Earth asteroids whose orbits are very Earth-like in character, having low inclination, orbital periods close to one Earth year, and low eccentricity.

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

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.

* NEAR Shoemaker – 17 February 1996 – Eros orbiter, first near-Earth asteroid flyby, first asteroid orbit and first asteroid landing

* Among near-Earth asteroids, satellites tend to orbit at distances of the order of 3 – 7 primary radii, and have diameters two to several times smaller than the primary.

They were placed in near-Earth orbit and waited for the Minbari to strike.

* 99942 Apophis-a near-Earth asteroid that will pass within geosynchronous orbit in 2029.

He has discovered numerous asteroids, particularly near-Earth asteroids, including, which briefly created a stir in the news media when a preliminary orbit calculation indicated the possibility of Earth impact in 2028 ; further observations led to a more accurate orbit, which disproved the impact.

The satellite objectives were ( 1 ) demonstration of the functional operations of the mechanical, structural, and electronic systems and ( 2 ) evaluation of meteoroid data sampling in near-Earth orbit.

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.

433 Eros is a S-type asteroid | stony asteroid in a near-Earth orbit