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Open AccessA Comparison of Presolar Isotopic Signatures in Laboratory-Studied Primitive Solar System Materials and Comet 67P/Churyumov-Gerasimenko: New Insights from Light Elements, Halogens, and Noble Gases
Comets are considered the most primitive planetary bodies in our Solar System. ESA’s Rosetta mission to Jupiter family comet 67P/Churyumov-Gerasimenko (67P/CG) has provided a wealth of isotope data which expan...
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Open AccessAMBITION – comet nucleus cryogenic sample return
We describe the AMBITION project, a mission to return the first-ever cryogenically-stored sample of a cometary nucleus, that has been proposed for the ESA Science Programme Voyage 2050. Comets are the leftover bu...
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Open AccessOn the Origin and Evolution of the Material in 67P/Churyumov-Gerasimenko
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 observed through Earth- and space-b...
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Evidence of ammonium salts in comet 67P as explanation for the nitrogen depletion in cometary comae
Cometary comae are generally depleted in nitrogen. The main carriers for volatile nitrogen in comets are NH3 and HCN. It is known that ammonia readily combines with many acids, such as HCN, HNCO and HCOOH, encoun...
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Open AccessDust-to-Gas and Refractory-to-Ice Mass Ratios of Comet 67P/Churyumov-Gerasimenko from Rosetta Observations
This chapter reviews the estimates of the dust-to-gas and refractory-to-ice mass ratios derived from Rosetta measurements in the lost materials and the nucleus of 67P/Churyumov-Gerasimenko, respectively. First, t...
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Open AccessPresolar Isotopic Signatures in Meteorites and Comets: New Insights from the Rosetta Mission to Comet 67P/Churyumov–Gerasimenko
Comets are considered the most primitive planetary bodies in our Solar System, i.e., they should have best preserved the solid components of the matter from which our Solar System formed. ESA’s recent Rosetta ...
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Article
Water Reservoirs in Small Planetary Bodies: Meteorites, Asteroids, and Comets
Asteroids and comets are the remnants of the swarm of planetesimals from which the planets ultimately formed, and they retain records of processes that operated prior to and during planet formation. They are a...
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Protostellar and cometary detections of organohalogens
Organohalogens, a class of molecules that contain at least one halogen atom bonded to carbon, are abundant on the Earth where they are mainly produced through industrial and biological processes ...
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High-molecular-weight organic matter in the particles of comet 67P/Churyumov–Gerasimenko
The COSIMA mass spectrometer on the Rosetta spacecraft has analysed the solid organic matter found in dust particles emitted by comet 67P/Churyumov–Gerasimenko; this matter is similar to the insoluble organic ...
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Open AccessSample return of interstellar matter (SARIM)
The scientific community has expressed strong interest to re-fly Stardust-like missions with improved instrumentation. We propose a new mission concept, SARIM, that collects interstellar and interplanetary dus...
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Open AccessDuneXpress
The DuneXpress observatory will characterize interstellar and interplanetary dust in-situ, in order to provide crucial information not achievable with remote sensing astronomical methods. Galactic interstellar...
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Rapporteur Paper on the Composition of Comets
The ISSI workshop on “Origin and evolution of comet nuclei” had the goal to put together recent scientific findings concerning the “life” of a comet from the formation of the material in a dark molecular cloud...
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Rapporteur Paper on the Composition of Comets
The ISSI workshop on “Origin and evolution of comet nuclei” had the goal to put together recent scientific findings concerning the “life” of a comet from the formation of the material in a dark molecular cloud...
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Chapter
Rosina’s Scientific Perspective at Comet Churyumov-Gerasimenko
The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) on board Rosetta is designed to analyze the volatile material of comet 67P/Churyumov-Gerasimenko. We show in this paper that the scientifi...
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Article
Isotopic Abundances in Comets
Isotopic ratios in comets provide keys for the understanding of the origin of cometary material, and the physical and chemical conditions in the early Solar Nebula. We review here measurements acquired on the ...
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Chapter
Isotopic Abundances in Comets
Isotopic ratios in comets provide keys for the understanding of the origin of cometary material, and the physical and chemical conditions in the early Solar Nebula. We review here measurements acquired on the ...
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Chapter
The constituents of cometary nuclei
Close to the edge of our Solar System is a cloud containing many tiny objects only a few kilometers in diameter. Even though their number has been estimated to be as large as ~1013, their total mass is still negl...
