Possible sources of terrestrial contamination are considered for the observation of polycyclic aromatic hydrocarbons (PAHs) in the Martian meteorite ALH84001. Contamination is concluded to be negligible.

Context. Andesitic meteorites are among the oldest achondrites known to date. They record volcanic events and crust formation episodes in primordial planetesimals that took place about 4.565 Myr ago. However, no analogue for these has been found asteroid population Aims. We searched spectroscopic analogues of andesitic meteorite Erg Chech 002 using Gaia DR3 spectral dataset. Methods. In order i...

The cohesion of particles has a significant effect on the properties small bodies. In this study, we measured in open air, cohesive forces tens micron-sized irregularly shaped meteorite, silica sand, glass powder, and spherical particles, using centrifugal method. addition, estimated amount water vapor adsorbed under measurement conditions. meteorite are times smaller than those an ideally part...

Introduction: The Mars Exploration Rover (MER) Opportunity has come across several possible meteorites, among them the only officially recognized meteorite on another planet, the IAB iron meteorite Meridiani Planum [1]. Three meteorite candidate rocks investigated by Opportunity-informally dubbed Barber-ton, Santa Catarina and Santorini by the MER team-have very similar chemical and mineralogic...