asteroide

A region of space lying between Mars (1.5 AU) and Jupiter (5.2 AU), where the great majority of the asteroids are found. None of the belt asteroids have retrograde motion.

asteroid (planet i vogël, planet i vockël)

Astronomía; Astronomía general

Also called planetoids or minor planets, the asteroids are tiny planets most of which orbit the Sun between Mars and Jupiter. The largest - and the first discovered - is Ceres, ...

objekt fluturues i paidentifikueshëm (UFO)

Aeroespacial; Vuelo espacial

UFOs are unidentified aircraft which are attributed to alien space flight. One supposed UFO halted air traffic at Hangzhou Airport, China, on July 7. The appearance is being ...

anije kozmike

Aeroespacial; Vuelo espacial

A reusable spacecraft with wings developed by the U.S. National Aeronautics and Space Administration (NASA) for human spaceflight missions. The first test flight took place in ...

zenit

Aeroespacial; Vuelo espacial

The point on the celestial sphere directly above the observer. Opposite the nadir.

zeta (Z)

Aeroespacial; Vuelo espacial

A multiplier, x1021 from the last letter of the Latin alphabet. See the entry for CGPM.

rreze x

Aeroespacial; Vuelo espacial

Electromagnetic radiation in the neighborhood of 100 picometer wavelength.

peshë

Aeroespacial; Vuelo espacial

The gravitational force exerted on an object of a certain mass. The weight of mass m is mg Newtons, where g is the local acceleration due to a body's gravity.