2024 Pellas-Ryder Award to Ren Marquez

Announcement of the 2024 Pellas-Ryder Award to Ren Marquez. More…


Announcement of the 2024 Meteoritical Society Awards

At the Meteoritical Society Business Meeting at the annual meeting at UCLA, those selected to receive 2024 Awards were announced. More…


2023 Pellas-Ryder Award

Announcement of the 2023 Pellas-Ryder Award to co-winners Jupiter Cheng and Adeene Denton. More…


Pellas-Ryder Award for 2021 to Jan L. Hellmann

Jan L. Hellmann, currently a postdoc at the Institut für Planetologie, University of Münster, Germany, is awarded the 2021 Pellas-Ryder Award for his paper titled “Origin of volatile element depletion among carbonaceous chondrites” published in Earth & Planetary Science Letters in 2020. Jan Hellmann was a PhD student at the Institut für Planetologie, University of Münster, working with Thorsten Kleine, when the paper was submitted. He analyzed the isotopic composition of tellurium, a moderately volatile element, in carbonaceous chondrites to find that mass-dependent Te isotope fractionation correlated with matrix mass fraction and nucleosynthetic chromium (Cr-54) isotope compositions. More…


Pellas-Ryder Award for 2020 to Sabina D. Raducan

Sabina D. Raducan, currently a PhD student in the Department of Earth Science and Engineering at Imperial College, London, is awarded the 2020 Pellas-Ryder Award for her paper titled “The role of asteroid strength, porosity and internal friction in impact momentum transfer” published in Icarus in 2019. More…


Pellas-Ryder Award for 2019 to Simon Lock

Simon J. Lock, currently a postdoc at the California Institute of Technology, is awarded the 2019 Pellas-Ryder Award for his paper titled “The Origin of the Moon within a Terrestrial Synestia” published in the Journal of Geophysical Research Planets in 2018. Simon Lock was a Ph.D student at the Department of Earth and Planetary Sciences, Harvard University, working with Sarah T. Stewart (now at UC Davis), when the paper was submitted. More…


Pellas-Ryder Award for 2018 to Emily Worsham

Emily Worsham, currently a postdoc at the University of Muenster, is awarded the 2018 Pellas-Ryder award for her paper titled "Characterizing cosmochemical materials with genetic affinities to the Earth: Genetic and chronological diversity within the IAB iron meteorite complex," published in the Earth and Planetary Science Letters in 2017. More…