Species are characterized by the fact that they are reproductively isolated from other groups, which means that the organisms in one species are incapable of reproducing with organisms in another species.
This is an example of Nuclear Technology.
In nuclear technology, the atomic nuclei of radioactive fuel undergo nuclear reaction.
This means that the radioactive fuel undergoes nuclear fission (atomic nuclei separates or splits) or fusion (atomic nuclei fuses or joins).
Nuclear technology then generates atomic energy and releases it in the form of electricity.
I believe its a because the sun is located in a spiral arm of the galaxy so we would be farther away from the center than we would be if we were not in an arm hope it helps