I am a Reader (Associate Professor) in Astrophysics at the Institute of Cosmology and Gravitation at the University of Portsmouth, as well as a Research Associate at the American Museum of Natural History. I study different types of transients – astrophysical phenomena that change on human timescales. I mostly work on supernovae – the explosions of stars – and try to figure out which stars explode as different types of supernovae. To do so, I observe both the supernovae and their host galaxies with ground and space-based telescopes.