Questions and Comments from Visitors

I suggest caution in where an atomic clock is tested on the space station. A good reference point is probably the space station center of gravity. Clocks in free fall from 6000 miles and GPS clocks in orbit at 12000 miles both weightless gave the same readings while clocks on MIR were different. Dan Harrington.

What are the possibilities and limitations of space travel within and beyond our solar system? asked by Ayamnemon

A byline and short biography of the author will be given at the end of the article. You may include two links for further study, and, if you choose, an email address for reader contact.

The following links may be of help to you, if this is for research. If you are asking for my personal opinion or philosophy, it is, "The possibilities of space travel are endless and certain; the limitations of these space travels are only dictated and limited by our minds."

Thanks for stopping by! Hope these links offer help:

Horizons User Manual http://ssd.jpl.nasa.gov/horizons_doc.html

JPL/Art Center Spacecraft Design Class http://www.jpl.nasa.gov/ice_fire/accd-top.htm

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