Why send Humans into Space?

Available for over a year

As the USA and Europe look to the stars again, the Royal Astronomical Society starts a year-long review of the scientific case for human space flight. What is the evolutionary purpose of "junk DNA" in both chickens and humans that date back to a distant common ancestor. Why scientists in Idaho are editing and reversing birdsong. Why "dying" in a swimming race is inevitable but can be postponed.