This is a really interesting approach but the downside is "the need for a 150 m^2 antenna area or compact light-weighted Xray telescopes and detectors, which ar

This is a really interesting approach but the downside is "the need for a 150 m^2 antenna area or compact light-weighted Xray telescopes and detectors, which are currently developed for the next generation of X-ray observatories." This really limits it to very large spacecraft, not the type of spacecraft in use today.