Abstract The Heat Flow and Physical Properties Package HP 3 for the InSight mission will
attempt the first measurement of the planetary heat flow of Mars. The data will be taken at the …

An accurate assessment of the bulk chemical composition of Mars is fundamental to
understanding planetary accretion, differentiation, mantle evolution, the nature of the …

For 2 years, the InSight lander has been recording seismic data on Mars that are vital to
constrain the structure and thermochemical state of the planet. We used observations of …

The geological units on the floor of Jezero crater, Mars, are part of a wider regional
stratigraphy of olivine-rich rocks, which extends well beyond the crater. We investigated the …

Comparing compositional models of the terrestrial planets provides insights into
physicochemical processes that produced planet-scale similarities and differences. The …

We report maps of the concentrations of H, Si, Cl, K, Fe, and Th as determined by the
Gamma Ray Spectrometer (GRS) on board the 2001 Mars Odyssey Mission for±∼ 45° …

Analyses of seismic data from the InSight mission have provided the first in situ constraints
on the thickness of the crust of Mars. These crustal thickness constraints are currently limited …

Abstract The Interior exploration using Seismic Investigations, Geodesy, and Heat Transport
(InSight) Mission will focus on Mars' interior structure and evolution. The basic structure of …

The MESSENGER Gamma-Ray Spectrometer measured the average surface abundances
of the radioactive elements potassium (K, 1150±220 parts per million), thorium (Th, 220±60 …

Orbital gamma‐ray measurements obtained by the MESSENGER spacecraft have been
analyzed to determine the abundances of the major elements Al, Ca, S, Fe, and Na on the …