a scientist who studies the stars and other bodies in space
The astronomer slept during the day and worked at night, when the stars are out.
experiment
a scientific test that is performed to study something and see how it reacts to different conditions
The scientists did experiments on many small animals.
faraway
very far away in space or time
Yellowstone National park is a faraway place from our house.
hydrogen
a chemical element that is the lightest of all elements, has no smell or color
Balloons filled with hydrogen can easily float away if you aren’t careful.
provide
공급하다
The school will provide the stationary needed.
range
an amount of variation
Rainfall in the forest falls within the range of 2.4 to 5.6 inches a month, depending on the season.
space shuttle
a space craft that launches as a rocket and returns to Earth as a plane
The astronauts went to space in the space shuttle.
Space Station
a man-made structure that orbits a planet and on which astronauts can live and work
The International Space Station was built by many countries.
space suit
우주복
The astronauts in space suits are floating inside the spaceship.
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