Telescopes are placed in space primarily to avoid the absorption of light or other radiations in the Earth`s atmosphere. When observing distant galaxies from Earth, the atmosphere acts as a filter, absorbing or distorting the light coming from these objects. This can hinder our ability to accurately study and understand the properties and characteristics of these galaxies.

By placing telescopes in space, astronomers can bypass this issue. In space, there is no atmospheric interference, allowing for a clear and unobstructed view of the distant galaxies. This enables scientists to gather more accurate data and make more detailed observations.

While the other options mentioned may play a role in the decision to place telescopes in space, they are not the primary reason. Option 1, getting closer to observed objects, is not a practical solution as distant galaxies are millions or even billions of light-years away. Option 3, avoiding light pollution, is relevant for ground-based telescopes but not the primary reason for placing telescopes in space. Option 4, steering against Earth`s motion, can be compensated for with ground-based telescopes, so it is not the primary reason for placing them in space.

In summary, the primary reason for placing telescopes in space is to avoid the absorption of light or other radiations