Back to the MoonA scientist's inspiring vision of our return to the Moon as humanity's next thrilling step in space exploration. Just over half a century since Neil Armstrong first stepped foot on the lunar surface, a new space race to the Moon is well underway and rapidly gaining momentum. Laying out a vision for the next fifty years, Back to the Moon is astrophysicist Joseph Silk's persuasive and impassioned case for putting scientific discovery at the forefront of