Primitive objects like comets hold important information on the material that formed our solar
system. Several comets have been visited by spacecraft and many more have been …

Samples of the carbonaceous asteroid (162173) Ryugu were collected and brought to Earth
by the Hayabusa2 spacecraft. We investigated the macromolecular organic matter in Ryugu …

Martian moons exploration, MMX, is the new sample return mission planned by the Japan
Aerospace Exploration Agency (JAXA) targeting the two Martian moons with the scheduled …

Solar system bodies like comets, asteroids, meteorites and dust particles contain organic
matter with different abundances, structures and chemical composition. This chapter …

Large amounts of nitrogen compounds, such as ammonium salts, may be stored in icy
bodies and comets, but the transport of these nitrogen-bearing solids into the near-Earth …

The annual flux of extraterrestrial material on Earth is largely dominated by sub-millimetre
particles. The mass distribution and absolute value of this cosmic dust flux at the Earth's …

Context. The properties of the smallest subunits of cometary dust contain information on their
origin and clues to the formation of planetesimals and planets. Compared to interplanetary …

Meteorites originating from primitive C-type asteroids are composed of materials from the
Sun's protoplanetary disk, including up to a few per cent organic carbon. In contrast, some …

Carbonaceous chondrites (CC) contain a diversity of organic compounds. No definitive
evidence for a genetic relationship between these complex organic molecules and the …

Organic matter in carbonaceous chondrites is distributed in fine-grained matrix. To
understand pre-and postaccretion history of organic matter and its association with …