The Species of Humankind

To justify humanity as a species is as complex as trying to explain planetary alignment; it depends which planet in which galaxy of which there are trillions. Are they inhabited? It's dependent upon perspective. For example, is the Amoeba aware of a human eye, belonging to a human being viewing through a microscope.

But, space exploration, which you are on the verge of perfecting, will have for other intelligent beings, cause for investigation.