ARES · NASA Johnson Space Center

Patrick M. Shober

Planetary scientist · NASA Postdoctoral Fellow, Johnson Space Center

I study how small bodies deliver material to Earth, finding meteorite falls in weather radar and tracing meteoroids back to the asteroids and comets they came from.

Patrick M. Shober

Latest publications

Illustration of the two-step filter: thermal fragmentation near the Sun breaking apart dark primitive material, then fireballs burning through the atmosphere above a meteorite-strewn desert

Perihelion filtering and the meteorite record

Flagship result · Nature Astronomy 2025

Meteorite collections aren't a fair sample of what hits Earth. What survives to the ground is decided by an object's history close to the Sun, not only where it came from.

April 2025

All publications →

A little about me
and my work

I’m a planetary scientist in the Astromaterials Research and Exploration Science (ARES) division at NASA Johnson Space Center. The sky above us is instrumented — and most of what falls out of it is never found. My work teaches machines to spot freshly fallen meteorites in the U.S. NEXRAD weather-radar network, so we can get to them before the weather does.

I specialise in the full chain from fireball → fall → meteorite, combining wide-field camera networks (DFN, FRIPON, the Global Fireball Observatory), small-body dynamics, and the physics of atmospheric entry. That chain keeps surprising us: meteorite collections turn out to be a strongly filtered sample of what actually hits Earth, shaped by thermal fragmentation near the Sun (Nature Astronomy, 2025), and most “comet-like” fireballs are in fact asteroidal interlopers.

I earned my PhD at Curtin University in 2022, chasing fireballs across the Australian outback with the Desert Fireball Network. Along the way, the IAU named asteroid (33964) Patrickshober — a rock I’m happy to report is staying safely in the main belt.

From the field

Scenes from the fireball networks and recovery campaigns behind the papers

The Winchcombe fireball · All-sky camera view of the 2021 UK meteorite fall Video: UK Fireball Alliance
Two researchers kneeling beside a freshly recovered meteorite in the outback
Fresh from the sky · A DFN team recovers a newly fallen meteorite in the Australian outback Photo: Desert Fireball Network, Curtin University
M2026-A1, a brand-new meteor stream · 282 meteors traced back to a crumbling asteroid Animation: Shober 2026, ApJ
Gold FRIPON all-sky camera on a snowy mountain summit at dusk
Eyes on the sky · A FRIPON all-sky camera above the clouds at blue hour Photo: FRIPON / Vigie-Ciel
Drone view looking straight down at a researcher on an outback track
Searching from above · Drone-assisted searching on a DFN strewn field Photo: Desert Fireball Network, Curtin University
Rusted-steel Desert Fireball Network observatory with solar panel on red earth under blue sky
A desert sentinel · Desert Fireball Network camera station on watch Photo: Desert Fireball Network, Curtin University
World map showing career moves between Cleveland, Perth, Paris, and Houston with fireball-network logos
Cleveland → Perth → Paris → Houston · One career, four fireball networks
Radar reflectivity map of meteorite fragments detected over Osceola, Florida Interactive: see a fall in weather radar · MetDetect finds falling meteorites in NEXRAD — try the live demo →
My asteroid