any of the rocky bodies orbiting the sun, ranging greatly in diameter, also found in large numbers between Jupiter and Mars
소행성
a place in the space with such high gravity that pulls in everything, even light
블랙홀
the 1st and smallest planet in the solar system which is the closest to the sun
수성 행성
the 5th and the largest planet of the solar system located between Mars and Saturn
목성
the 6th planet of the solar system located between Jupiter and Uranus, which has rings around it
토성
the 7th planet of the solar system with a blue-green color located between Saturn and Neptune
천왕성 행성
a scientist who studies or observes planets, stars, and other happenings in the universe
천문학자
the act of an aircraft or spacecraft arriving on the ground or a solid surface
지상에 착륙
an object sent into space to travel around the earth and send or receive information
우주 위성
a large structure used as a long-term base for people to stay in space and conduct research
우주 정거장
a period during which an astronaut moves outside an spacecraft in space, typically to perform repairs or experiments
우주 유영
a piece of equipment by which the far objects, particularly those in space, are made clearly visible
망원경