Yes. Using a Scanning Tunnelling Microscope (or some variant thereof), individual atoms can be mapped.
scanning probe
Atoms could be identified by various technique. Single crystal X-ray diffraction is the most important in that.
Scientists do not observe Mercury as often because it is difficult to do so.
it depends on the size of the To_observe_a_small_living_organism_a_scientist_might_use_a. If it is microscopic, then scientists might have to observe it using it using a microscope. If it can actually be seen, then scientists mught actually take a sample of it back to the labratory to observe physically
Tools enable scientists to make more accurate observations, and to observe things that they otherwise could not observe. For example, microscopes allow scientists to observe bacteria, which otherwise are too small to see.
Scientists observe pretty much everything. Clues can be anywhere.
Archimedes
they use satellites.
The instrument scientists use to observe the planets is a high powered telescope.
By using a telliscope
data.
telescope