"Recent events in the Ukraine and our dependency on the Russians for transportation to the space station [make it] even more important to reignite our space program."
So argued Gene Grush, former head of the propulsion and power group at NASA's Johnson Space Center, in a series of articles published by Fox News earlier this year. But why is it so "important" that the U.S. "reignite" its space program? What sparked this sense of urgency, and what are America's space exploration companies doing to fix it?
What does that mean?