What I work on

Research

I study how small bodies deliver matter and information to Earth, connecting telescopic surveys, the fireballs that wide-field camera networks catch, and the meteorites we analyse in the lab. Across all of it, what reaches the ground is only a filtered sample of what's actually out there.

Planetary defense & the decametric gapMulti-sensor fusion (radar · optical · infrasound)Meteorite recovery & fireball networksSmall-body dynamics & orbital statisticsMixing of cometary & asteroidal reservoirsPrimitive carbonaceous material & its survival
Illustration of the progression from asteroid to meteoroid to meteor to fireball to meteorite
From asteroid to meteorite: the sequence my work follows, from small-body dynamics to the sample on the ground. Illustration: P. Shober.
Flagship · Nature Astronomy

Perihelion filtering & the meteorite record

Why meteorite collections are a thermally- and atmospherically-filtered subset of what actually reaches Earth, and where the carbonaceous chondrites went.

Small-body dynamics

Cometary ↔ asteroidal reservoir mixing

Most “comet-like” fireballs are asteroidal interlopers: long-term integrations show only ~1–5% of cm–m bodies on Jupiter-family orbits are dynamically cometary.

NASA · MetDetect

Sensor fusion & radar meteorite detection

Turning the NEXRAD weather-radar network into an automatic meteorite-fall detector, and working toward fusing radar, optical & infrasound to close the 10–100 m “decametric gap.”

FRIPON · GFO · DFN

Meteorite recovery & fireball networks

Fireball-network science across the full chain, from astrometry and orbits to drone- and ML-assisted recovery of fresh, orbit-bearing meteorites.

Tools & demos

MetDetect: live detection results for the ACM 2026 poster are at /acm2026; an interactive in-browser viewer is planned at /detect. And for fun, see where my namesake asteroid is right now at /asteroid.