Symposium on “Beamed Energy Propulsion” Albany Times Union

What the Rensselaer Polytechnic Institute professor and several other researchers are working on is something called “beamed energy propulsion,” using laser beams to propel spacecraft without the big, fire-belching engines rocket ships are associated with today.
As a result, they would be lighter, cheaper and more accessible to the average person who wants to take a jaunt into space.