Such projects are done for maximum sensitivity. (Score 2)

By resolution, interferometers with a spaced base certainly cannot be surpassed. Such projects are done for maximum sensitivity. Well, no one bothers him then, if he wants to use it as one of the components on the network, having received both a record resolution (thanks to an extra-long base) and record sensitivity. Indeed, one can “look” beyond the boundaries of a galaxy for a long time, but they look at objects of completely different scales there - the radiation of galaxies in general, supernova explosions, quasars (active galactic nuclei) and relict background (remnants of the Big Bang). Those. many orders of magnitude more powerful sources of radio waves.I like to watch more space news like this. A pulsar is just one relatively small stable star (neutron). For such objects, more than 1000 light-years of distance is a very good result. Moreover, these are only debugging and tuning tests going.