Why might the space race have exacerbated tensions between the Superpowers?

Possibility of weaponry usage or storage.

Explanation:

The Soviet union and United states during that period was around cold war period so both nations would want to get there before each other to have bragging rights and to also have advantages if so needed be if a war broke out.

regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.