The Glashow resonance describes the resonant formation of an on-mass W- boson via the scattering of an electron antineutrino and an electron, a process first predicted in 1959. In the electron rest frame, the requisite neutrino energy of 6.3 PeV lies beyond the reach of terrestrial accelerators. However, the discovery of a diffuse flux of astrophysical neutrinos by IceCube gave rise to the possibility of detecting the resonance via high-energy (anti)neutrinos from outer space.

Among the sources which the Laser Interferometer Space Antenna (LISA) will observe are the signals from Massive Black Hole Binaries during their inspiral, merger and ring-down phases. To estimate physical parameters of these systems and their localisations, one has to perform some form of Bayesian Inference. The most common approach to do it is through defining a likelihood function and producing posterior samples with some form of sampling technique. The disadvantage of such sampling methods is that they are slow.

Gravitational waves have a periodic effect on the apparent positions of stars on the sky. This effect can be quantified and hence ultra-precise astrometric measurements (like the ones from Gaia) can provide a new method to search for gravitational signals.