satellite (n)
/ˈsæt.əl.aɪt/

a device sent up into space to travel round the Earth, used for collecting information or communicating by radio, television, etc.

satellite

simulator (n)
/ˈsɪm.jʊ.leɪ.tər/

a piece of equipment that is designed to represent real conditions, for example in an aircraft or spacecraft

simulator

solar system (n)
/ˈsəʊ.lər ˈsɪs.təm/

a star and the planets that go round it, especially the Sun and the group of planets that includes the Earth

solar system

surface (n)
/ˈsɜː.fɪs/

the outer or top part or layer of something

surface

weightlessness (n)
/ˈweɪt.ləs.nəs/

having or appearing to have no weight

weightlessness

inevitable (a)
/ɪˈnev.ɪ.tə.bl̩/

certain to happen and unable to be avoided or prevented

inevitable

toxic (a)
/ˈtɒk.sɪk/

poisonous and harmful to people, animals, or the environment

toxic

rotate (v)
/rəʊˈteɪt/

to turn around a fixed point, or to cause something to do this

rotate

sky (n)
/skaɪ/

the area above the earth, in which clouds, the sun, etc. can be seen

sky

float (v)
/fləʊt/

o stay on the surface of a liquid and not sink

float

propel (v)
/prəˈpel/

to push or move something somewhere, often with a lot of force

propel

sustain (v)
/səˈsteɪn/

to provide the conditions in which something can happen or exist

sustain

spacecraft (n)
/ˈspeɪs.krɑːft/

a vehicle used for travel in space

spacecraft

star (n)
/stɑːr/

a very large ball of burning gas in space that is usually seen from Earth as a point of light in the sky at night

star

temperature (n)
/ˈtem.prə.tʃə(r)/

the measured amount of heat in a place or in the body

temperature

robot (n)
/ˈrəʊ.bɒt/

a machine controlled by a computer that is used to perform jobs automatically

robot

flag (n)
/flæɡ/

a piece of cloth decorated with the pattern and colours that represent a country or organization

flag

southern (a)
/ˈsʌð.ən/

in or from the south of a country or region

southern

operate (v)
/ˈɒp.ər.eɪt/

to (cause to) work, be in action or have an effect

operate

distance (n)
/ˈdɪs.təns/

the amount of space between two places or things

distance
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