Research Interests

Asteroid Lutetia, imaged by the ESA Rosetta space probe on its way to 67P.
Asteroid Lutetia, imaged by the ESA Rosetta space probe on its way to 67P.

I have been interested in “all things space” since early childhood. I remember waiting for the Galileo space probe to send back the first close-up pictures of asteroids. Later, I closely followed the discovery of the first exoplanets.

Today, my interests are still broad, but my career has found its current focus in the analysis of noble gases in extraterrestrial materials. In particular, I have measured He and Ne in tiny, rare (and occasionally exotic) samples, including presolar grains, olivine grains brought back by the JAXA Hayabusa space probe from asteroid Itokawa, and fossil micro-meteoritic chromite grains from an asteroid break-up event, recovered from Ordovician sediments. I also have a growing interest in meteorites with orbits and their cosmic histories, and I have recently published on the Giant Impact, on Hg in meteorites and on using meteorites to infer the stability of decay constants.