  The advent of gravitational waves and black hole imaging has opened a new
window into probing the horizon scale of black holes. An important question is
whether string theory results for black holes can predict interesting and
observable features that current and future experiments can probe. In this
article I review the budding and exciting research being done on understanding
the possibilities of observing signals from fuzzballs, where black holes are
replaced by string-theoretic horizon-scale microstructure. In order to be
accessible to both string theorists and black hole phenomenologists, I give a
brief overview of the relevant observational experiments as well as the
fuzzball paradigm in string theory and its explicitly constructable solutions
called microstate geometries.
