For Mission to Mars, a New Road Map, NY Times

"At a workshop last month in Galveston, members of NASA study teams looking at how to put in effect the Obama policy presented their current thinking to 450 attendees from industry and academia. The NASA presenters, in describing how the space agency could make it to Mars on a limited budget, said their ideas represented "a point of departure" that would be revised with feedback. The new plans place a heavy emphasis on in-orbit refueling stations, which would reduce the size of rockets needed. For propulsion to Mars, the road map envisions a nuclear-powered ion engine."

In New Space Race, Enter the Entrepreneurs, NY Times

"If this business plan unfolds as it is written -- the company has two fully inflated test modules in orbit already -- Bigelow will be buying 15 to 20 rocket launchings in 2017 and in each year after, providing ample business for the private companies that the Obama administration would like to finance for the transportation of astronauts into orbit -- the so-called commercial crew initiative."