H. C. Connolly
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View article: Abundant supernova dust and heterogeneous aqueous alteration revealed by stardust in two lithologies of asteroid Bennu
Abundant supernova dust and heterogeneous aqueous alteration revealed by stardust in two lithologies of asteroid Bennu Open
The oldest constituents in chondritic samples are presolar grains that condensed in the outflows and explosions of dying stars. These grains divulge the types and concentrations of dust that seeded our Solar System. However, they are subje…
View article: Nitrogen- and oxygen-rich organic material indicative of polymerization in pre-aqueous cryochemistry on Bennu’s parent body
Nitrogen- and oxygen-rich organic material indicative of polymerization in pre-aqueous cryochemistry on Bennu’s parent body Open
Nitrogen-containing organic compounds play key biological roles, and their identification in primitive astromaterials such as meteorites can shed light on the origin of life. However, meteorites are typically contaminated by uncontrolled e…
View article: Prebiotic organic compounds in samples of asteroid Bennu indicate heterogeneous aqueous alteration
Prebiotic organic compounds in samples of asteroid Bennu indicate heterogeneous aqueous alteration Open
NASA’s OSIRIS-REx mission characterized the asteroid Bennu and delivered pristine samples of its regolith to Earth. Coordinated analyses of this primitive, carbonaceous material are elucidating the abiotic formation and inventory of prebio…
View article: A Universal Scaling Framework for Granular Asteroid Strength and its Application to Bennu's Surface
A Universal Scaling Framework for Granular Asteroid Strength and its Application to Bennu's Surface Open
Granular asteroids can exhibit unexpected structural stability despite their low gravity and rapid spin rates. Understanding the physical mechanisms underlying their strength is crucial for predicting asteroid evolution and designing defle…
View article: Asteroid Regolith Strength Modelling Informed by Bennu Sample Measurements
Asteroid Regolith Strength Modelling Informed by Bennu Sample Measurements Open
Informed by findings about the sample from asteroid Bennu, we apply a new simulation methodology to better understand how Van der Waals (VdW) forces work between spherical and non-spherical particles. Then we find a theoretical model that …
View article: P.104 A portrait of generalized Myasthenia Gravis in Canada: analysis of the Adelphi MG II disease specific programme
P.104 A portrait of generalized Myasthenia Gravis in Canada: analysis of the Adelphi MG II disease specific programme Open
Background: Generalized myasthenia gravis (gMG) is a rare, chronic, autoimmune disease characterized by muscle weakness and fatigue. This study aims to describe the natural history, disease burden and treatment patterns of gMG patients in …
View article: Surface Ages for the Sample Return Asteroids Bennu, Ryugu, and Itokawa
Surface Ages for the Sample Return Asteroids Bennu, Ryugu, and Itokawa Open
The OSIRIS-REx, Hayabusa2, and Hayabusa missions have returned samples from three near-Earth asteroids (NEAs), namely Bennu, Ryugu, and Itokawa, respectively. Insights into the geological and dynamical history of these NEAs can be gleaned …
View article: An overview of the petrography and petrology of particles from aggregate sample from asteroid Bennu
An overview of the petrography and petrology of particles from aggregate sample from asteroid Bennu Open
The OSIRIS‐REx mission returned a sample of regolith from the carbonaceous asteroid Bennu in September 2023. We present preliminary in situ investigations of the petrology and petrography of selected particles ranging in size from 0.5 to 3…
View article: Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu
Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu Open
Organic matter in meteorites reveals clues about early Solar System chemistry and the origin of molecules important to life, but terrestrial exposure complicates interpretation. Samples returned from the B-type asteroid Bennu by the Origin…
View article: Micro‐ and nanoscale studies of insoluble organic matter and C‐rich presolar grains in Murchison and Sutter's Mill in preparation for Bennu sample analysis
Micro‐ and nanoscale studies of insoluble organic matter and C‐rich presolar grains in Murchison and Sutter's Mill in preparation for Bennu sample analysis Open
Samples of B‐type asteroid (101955) Bennu returned by the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS‐REx) spacecraft will provide unique insight into the nature of carbonaceous asteroi…
View article: Numerical simulations suggest asteroids (101955) Bennu and (162173) Ryugu are likely second or later generation rubble piles
Numerical simulations suggest asteroids (101955) Bennu and (162173) Ryugu are likely second or later generation rubble piles Open
Rubble pile asteroids are widely understood to be composed of reaccumulated debris following a catastrophic collision between asteroids in the main asteroid belt, where each disruption can make a family of new asteroids. Near-Earth asteroi…
View article: Asteroid (101955) Bennu in the laboratory: Properties of the sample collected by <scp>OSIRIS</scp>‐<scp>REx</scp>
Asteroid (101955) Bennu in the laboratory: Properties of the sample collected by <span>OSIRIS</span>‐<span>REx</span> Open
On September 24, 2023, NASA's OSIRIS‐REx mission dropped a capsule to Earth containing ~120 g of pristine carbonaceous regolith from Bennu. We describe the delivery and initial allocation of this asteroid sample and introduce its bulk phys…
View article: High‐resolution cathodoluminescence of calcites from the Cold Bokkeveld chondrite: New insights on carbonatation processes in <scp>CM</scp> parent bodies
High‐resolution cathodoluminescence of calcites from the Cold Bokkeveld chondrite: New insights on carbonatation processes in <span>CM</span> parent bodies Open
Carbonates, as secondary minerals found in CM chondrites, have been widely employed for reconstructing the composition of the fluids from which they precipitated. They also offer valuable insights into the hydrothermal evolution of their p…
View article: Two-Dimensional Gas Chromatography Analysis of Samples Returned from Asteroid Bennu by OSIRIS-REx &#160;
Two-Dimensional Gas Chromatography Analysis of Samples Returned from Asteroid Bennu by OSIRIS-REx   Open
Extraterrestrial organic compounds are predominantly examined through the analysis of natural samples delivered to Earth via meteorites [1]. The focus has largely been on carbon-rich meteorites called carbonaceous chondrites. These meteori…
View article: QRIS: A Quantitative Reflectance Imaging System for the Pristine Sample of Asteroid Bennu
QRIS: A Quantitative Reflectance Imaging System for the Pristine Sample of Asteroid Bennu Open
The Quantitative Reflectance Imaging System (QRIS) is a laboratory-based spectral imaging system constructed to image the sample of asteroid Bennu delivered to Earth by the Origins, Spectral Interpretation, Resource Identification, and Sec…
View article: Molecular distribution and <scp><sup>13</sup>C</scp> isotope composition of volatile organic compounds in the Murchison and Sutter's Mill carbonaceous chondrites
Molecular distribution and <span><sup>13</sup>C</span> isotope composition of volatile organic compounds in the Murchison and Sutter's Mill carbonaceous chondrites Open
Volatile organic compounds (VOCs) are carbon‐containing chemicals that may evaporate rapidly at room temperature and standard pressure. Such organic compounds can be preserved inside carbonaceous chondrite matrices. However, unlike meteori…
View article: Investigating the impact of x‐ray computed tomography imaging on soluble organic matter in the Murchison meteorite: Implications for Bennu sample analyses
Investigating the impact of x‐ray computed tomography imaging on soluble organic matter in the Murchison meteorite: Implications for Bennu sample analyses Open
X‐ray computed tomography (XCT) is a valuable reconnaissance tool for three‐dimensional imaging and identification of distinct lithologies in extraterrestrial samples. It will be used as part of the preliminary examination of samples retur…
View article: The nature of insoluble organic matter in Sutter's Mill and Murchison carbonaceous chondrites: Testing the effect of x‐ray computed tomography and exploring parent body organic molecular evolution
The nature of insoluble organic matter in Sutter's Mill and Murchison carbonaceous chondrites: Testing the effect of x‐ray computed tomography and exploring parent body organic molecular evolution Open
This study analyzed samples of the Murchison and Sutter's Mill carbonaceous chondrite meteorites in support of the future analysis of samples returned from the asteroid (10155) Bennu by the OSIRIS‐REx (Origins, Spectral Interpretation, Res…
View article: OSIRIS-REx Sample Analysis Plan -- Revision 3.0
OSIRIS-REx Sample Analysis Plan -- Revision 3.0 Open
The Origins, Spectral Interpretation, Resource Identification, and Security Regolith Explorer (OSIRIS-REx) spacecraft arrived at its target, near-Earth asteroid 101955 Bennu, in December 2018. After one year of operating in proximity, the …
View article: Curation planning and facilities for asteroid Bennu samples returned by the <scp>OSIRIS‐RE</scp>x mission
Curation planning and facilities for asteroid Bennu samples returned by the <span>OSIRIS‐RE</span>x mission Open
NASA's OSIRIS‐REx spacecraft collected samples from carbonaceous near‐Earth asteroid (101955) Bennu on October 20, 2020, and will deliver them to the Earth on September 24, 2023. The samples will be processed at the NASA Johnson Space Cent…
View article: Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu
Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu Open
The Hayabusa2 spacecraft collected samples from the surface of the carbonaceous near-Earth asteroid (162173) Ryugu and brought them to Earth. The samples were expected to contain organic molecules, which record processes that occurred in t…
View article: Macromolecular organic matter in samples of the asteroid (162173) Ryugu
Macromolecular organic matter in samples of the asteroid (162173) Ryugu Open
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 samples and found that it contains aromatic and aliphatic carbo…
View article: Planning for OSIRIS-REx Sample Analysis
Planning for OSIRIS-REx Sample Analysis Open
The OSIRIS-REx spacecraft arrived at the near-Earth asteroid (101955) Bennu in December 2018.After operating in proximity for a year, a primary site was selected, and in October 2020, the spacecraft successfully collected a sample.It depar…
View article: Near-zero cohesion and loose packing of Bennu’s near subsurface revealed by spacecraft contact
Near-zero cohesion and loose packing of Bennu’s near subsurface revealed by spacecraft contact Open
When the OSIRIS-REx spacecraft pressed its sample collection mechanism into the surface of Bennu, it provided a direct test of the poorly understood near-subsurface physical properties of rubble-pile asteroids, which consist of rock fragme…