In some respects our position is similar to that of the late eighteenth-century pioneers in electricity and magnetism, and also to that of early 20th… - Brian O'Leary

I sympathize with my former colleagues in Houston who are spending ten years, perhaps forever, awaiting their flights into space. But this alone cannot justify the shuttle.<p>On the positive side, I believe that an unmanned space program emphasizing applications satellites and the exploration of the planets would be both economical and fundamental in our quest for knowledge. Such a program could be funded annually for between one and two billion dollars and thus free money and resources for more urgent priorities. Cooperating with the Soviet Union may reduce the costs further.

In 1979 Jahn and I began to develop a new mutual interest, although we did not learn of our commonality until several years later. The subject was psychokenesis, and it was so far outside our left-brained aerospace view of reality that it would take several years before either of us felt comfortable speaking about it in public. We were “closet parapsychologists,” afraid to reveal ourselves to the skeptical frowns of our Princeton colleagues. Nevertheless we began, independently, to explore inner space; it was so intriguing and had such a siren’s call to our thirst for understanding that we simply had to heed it, even knowing that the world would look on in disbelief if it were disclosed.

Nuclear power. Carbon sequestration at coal plants. Ethanol-from-corn. Other kinds of biofuels. Carbon cap-and-trading. Hybrid cars. Conventional electric cars. Air cars. Gas-turbine micropower. Efficient powerplants. Hydrogen economy. Hydro-power. Geothermal energy. Solar. Wind. Tides. Waves. Ocean thermal gradients.<p>Which one(s) of these will solve our climate crisis and give us a large and lasting contribution to energy sustainability? The sobering answer to any truthful inquiry, I am sorry to say, is none of the above.