مفردات لاختبار IELTS Academic (الدرجة 5) - علم الفلك

a spacecraft with the purpose of cricling around a celectial obejct without landing on it

the study of the movements of stars and planets that are thought to affect people and the world

an object sent into space to travel around the earth and send or receive information

all that exists in the physical world, such as space, planets, galaxies, etc.

a large number of star systems bound together by gravitational force

(astronomy) a shining point found in large numbers in the night sky

a huge round object that moves in an orbit, around the sun, or any other star

the large, bright star in the sky that shines during the day and gives us light and heat

the sun and the group of planets orbiting around it, including the earth

the path an object in the space follows to move around a planet, star, etc.

a vehicle designed to travel in space

clothing used by astronauts while traveling in space

A spacecraft designed to transport people or equipment between Earth and a space station or other celestial destination, typically capable of multiple trips

a spacecraft that moves up by the force of the gases produced when the fuel burns

the universe, particularly when it is thought of as a systematic whole

a US government agency responsible for space travel and the study of space

the circular object going around the earth, visible mostly at night

a piece of equipment by which the far objects, particularly those in space, are made clearly visible

someone who is trained to travel and work in space

a place in the space with such high gravity that pulls in everything, even light

the distance that light travels in a year (about 9.46 trillion kilometers)

a pale band of light seen in the sky at night that contains the solar system and billions of other stars

the layer of gases surrounding a planet, held in place by gravity

the explosion that, according to most scientists, caused the existence of the universe