The television program Cosmos: A Spacetime Odyssey is worth watching for reasons known and acknowledged by host Neil deGrasse Tyson, and for some he may not be aware of. Tyson exudes an affable authority as he guides viewers through this expensively produced and visually impressive successor to the 1980s blockbuster science documentary Cosmos: A Personal Voyage, hosted by Carl Sagan. While the series presented by Fox and National Geographic is not yet finished (11 of 13 episodes have been aired), its essential features are discernable.
For some time now, three of the most powerful forces in society—technological science and the moral values of equality and freedom—have been applied to the redefinition and reworking of a fundamental human and social institution: marriage and the family. Same-sex marriage is the most recent wave in this transformative endeavor.