Thirty-seven Philadelphia art institutions are collaborating on a massive project focusing on… well, nothing. From paintings that are nothing more than white canvas to tours of empty houses to philosphical explorations of ‘cosmological black holes,’ the collaboration, which has been dubbed “The Big Nothing,” will examine the idea of art as a reflection of space. “So much of the universe – so much of us, for that matter – is empty space. The [project] examines in depth the ramifications of that idea.”