One of the first, perhaps the first, professional conference on
   massless drives for space exploration is being held shortly in England.
   [1]http://www.sussex.ac.uk/space-science/workshop/agendax.[2]htm
   steve

References

   1. http://www.sussex.ac.uk/space-science/workshop/agendax.htm
   2. http://www.sussex.ac.uk/space-science/workshop/agendax.htm