Alfred Zaehringer returned as the guest for this Space Show program. Mr. Zaehringer focused on rocket economics during the program, explaining in detail why it is difficult and maybe impossible to substantially lower the cost of getting to LEO, the Moon, or anyplace in space using chemical rockets. In response to his earlier appearance on the program Jan. 4th of this year, Mr. Zaehringer was asked a series of follow up questions exploring possibilities for reducing launch costs to the next lower level, $1,000 per pound to LEO.