Question

Which of these techniques has NOT been used to explore other planets, moons, or objects in our solar system?

a) Robotic explorers.
b) Manned landings.
c) Spacecraft landings.
d) Telescopic observation.
e) Spacecraft orbiters.
f) All of these technique have been used.

Answer 1

The only technique not used for exploring other planets, moons, or objects in our solar system is manned landings, with the exception of the Moon.

Step-by-step explanation:

To answer the student's question, there is only one technique listed that has not been used to explore other planets, moons, or objects in our solar system: manned landings. While humans have set foot on the Moon during the Apollo missions, we have not yet sent astronauts to any other planets, moons, or celestial bodies. All the other techniques listed have been used extensively. Robotic explorers such as Voyager, Pioneer, Curiosity, and Pathfinder have flown past, orbited, or landed on various celestial bodies. Spacecraft landings have occurred on Venus, Mars, our Moon, Saturn's moon Titan, and several asteroids and comets. Telescopic observation using powerful new telescopes has furthered our understanding of the solar system, and spacecraft orbiters have been critical for studying planets such as Jupiter and Saturn in greater detail.