The united states space agency, NASA, has lead not only the country in space science and exploration since the early '60's, but as well erases borders by working in conjunction with other developed countries such as Russia and China, whom are considered "political adversaries" to a large portion of the electorate.
Knowledge and exploration is a language that every human being has in common regardless of our differences in culture or nationality.
Space is the final frontier. Eventually, we, collectively, have to make the decision to either become closer as a single species or remain on Earth to argue our differences with the threat of self-annihilation.
We may disagree how humanity came to be, but the fact we all agree on is that this is our home and we should focus on longevity.