Space Review: Flexible Path, Solar Sails and More

The Space Review features the following essays:

Michael Huang looks at problems with the Augustine Committee’s “flexible path” option.

Jeff Foust reports on a new bid by The Planetary Society fly a solar sail.

Dwayne Day notes that for all of NASA’s in delivering projects on time and on budget, the Defense Department’s project management woes are far more serious, with potentially bigger implications.

Taylor Dinerman reviews a book that offers a new perspective on the life of early space pioneer Konstantin Tsiolkovskii.