Jupiter as a Gravitational lens?? I remember reading in a swedish science mag about a planed probe to the solar foci 550 AU from the sun. When there it would use the gravity lensing of the sun as a telescop. But getting a probe out there and the cost of the project seems like to much of a obstacle to be overcom in the close future. So my question is. Why not use jupiter in the same way? Is Jupiters mass just to small to give a lensing effect worth the money to put a probe there??