greer%utd201.dnet%utadnx@utspan.span.nasa.gov (08/29/89)
In space research, a project usually will not be seriously proposed
by someone who might not be around to reap its benefits. We shouldn't
expect to see a Galileo type spacecraft sent to Neptune without quite an
energetic propulsion system, since it would take about 30 years, so I've
heard, to get there via Hohmann transfer orbit.
How big would the propulsion system have to be to get such a probe
to Neptune in five years if the whole system was launched from Earth orbit?
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"Drive Friendly or Die" | Dale M. Greer
Proposed Texas License Plate Motto | Center for Space Sciences
-- Anonymous | University of Texas at Dallas
| UTSPAN::UTADNX::UTDSSA::GREER
The opinions are my own, and may or may not reflect those of my employer.