  When two Neutron Stars collide a multi-band electromagnetic emission, known
as Kilonova (KN), follows being powered by the radioactive decay of ejecta
products. In this contribution we discuss how the equation of state of dense
matter, impacts the mass and velocity in the KN ejecta and thus its light
curve. Using this information encoded in the stellar mass-radius relationship,
we ellaborate on how the future experimental observations in photon channels,
in addition to complementary multimessenger probes, could provide a new and
more detailed insight into the equation of state of nuclear matter.

High Energy Astrophysical Phenomena;Solar and Stellar Astrophysics;General Relativity and Quantum Cosmology