Final answer:
A telescope designed for ultraviolet observations must be placed in space due to the Earth's atmosphere filtering out most of the ultraviolet radiation, making ground-based observations ineffective.
Step-by-step explanation:
When it comes to conducting ultraviolet observations, you should place a telescope for ultraviolet observations in space. This is because Earth's atmosphere filters out much of the ultraviolet radiation from celestial objects, thus observations in the ultraviolet spectrum cannot be effectively performed from the ground.
Historical advancements in rocket technology, such as those developed from V2 rockets after World War II, have made it possible to send instruments into space for these types of observations. Remember, other challenging conditions astronomers face on the ground, such as light pollution, air turbulence, and water vapor absorption, also contribute to the decision to locate ultraviolet telescopes above the atmosphere.