Some interesting items in The Space Review this week:
The case for a suborbital COTS program
As some suborbital companies struggle to raise the funding needed to develop their vehicles, NASA is taking an increasing interest in these vehiclesâ€™ capabilities to do science. Jeff Foust suggests that this may open the door for a COTS-like program that helps both NASA and industry.
Revisiting â€œTourists in Spaceâ€
How rigorous should the medical requirements be for potential space tourists? Dr. Petra Illig takes a critical look at the recommendations made in a recent book on the subject.
Space war: going deep
How can the military best protect its satellites from potential attack? Taylor Dinerman proposes that one way may be to put those spacecraft out of harmâ€™s way entirely.
Has anybody seen our satellite?
In the early years of the Space Age, not only were there problems determining if satellites reached orbit, there are also problems figuring out where they came back down. Dwayne Day recounts one such case that was the inspiration for a book and movie.
Ferrets of the high frontier: US Air Force ferret and heavy ferret satellites of the Cold War
A lesser-known class of spy satellites developed during the Cold War were signals intelligence satellites known as â€œferretsâ€. Dwayne Day provides a detailed history of the development of ferrets based on some newly declassified documents.