Words in context
planet — hành tinh. Mars is a planet in our solar system.
galaxy — thiên hà. Our solar system is in the Milky Way galaxy.
telescope — kính thiên văn. A telescope helps us observe distant objects.
crater — hố va chạm;miệng núi lửa. Many lunar craters were formed by impacts.
rocket — tên lửa. A rocket can carry instruments into space.
evidence — bằng chứng. A claim needs evidence.