UPSC Prelims 2022 Question 9 of 100

a. A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.

b. A spacecraft lands on another planet after making several orbital motions.

c. A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.

d. A spacecraft moves along a comet with the same speed and places a probe on its surface.