Anton Petrov – solar sails, rather make solar system sized interferometers and telescopes
Anton Petrov: So, What Happened to Project Breakthrough Starshot? Here’s What We Know at https://www.youtube.com/watch?v=HwPTF_TZvWY
It is much cheaper to make Mars Earth Moon baseline interferometer telescopes at many different frequencies to look at the whole universe more precisely than to waste time sending a camera to one near star. Check the resolution of mm wave telescope with a baseline of astronomical units. You get to use laser communication between antennas in space. Add them to orbits around all the bodies, free roaming or send some out to the Oort clouds. I think LISA is a waste, using photons and not atoms but it will pick up a few new things. And it is not evcn trying to get to GHZ and THz gravitational frequencies.