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Hotel Mars episode and I'm John Bachelor with David Livingston, my colleague and co-host and co-pilot.

And we take Hotel Mars to speak to a colleague of ours who is a helpmate when it comes to

NASA and the transformation of NASA from the risk-taking

high-end product of the 1960s and 70s that reached the moon

to what we see today displayed in the launch of the SLS,

which has not launched yet, which is scheduled to launch later or this week. However, the questions are raised about six years

over due or ten years overdue, twenty billion dollars, and 70s technology in part meeting a core that is a giant to perceive but so

expensive this one doesn't return as another space company can return a booster and in fact is meant

to fly just once.

So what are we achieving?

We've been to the moon, if we're going back to the Moon, how often? And those questions comport with

other news we have from why the SLS did not launch earlier has to do with a sensor that the engineers no longer trust that can't be easily

replaced unless you roll back to the VAB.

We welcome Ran Simburg, our colleague of many years, who observes NASA and its transformation

from the point of view of his book, which I highly recommend,

Safe is not an option overcoming the futile obsession with getting everyone back alive

that is killing our expansion into space.

...