Results 1 to 10 of about 76,745 (212)

Organic Matter in the Asteroid Ryugu: What We Know So Far

Life, 2023
The Hayabusa2 mission was tasked with returning samples from the C-complex asteroid Ryugu (1999 JU3), in order to shed light on the formation, evolution and composition of such asteroids.
Christian Potiszil, Masahiro Yamanaka, Chie Sakaguchi, Tsutomu Ota, Hiroshi Kitagawa, Tak Kunihiro, Ryoji Tanaka, Katsura Kobayashi, Eizo Nakamura   +8 more
doaj   +1 more source

The Unexpected Surface of Asteroid (101955) Bennu

Nature, 2019
NASA’S Origins, Spectral Interpretation, Resource Identification and Security-Regolith Explorer (OSIRIS-REx) spacecraft recently arrived at the near-Earth asteroid (101955) Bennu, a primitive body that represents the objects that may have brought ...
D. Lauretta, D. Dellagiustina, C. Bennett, D. Golish, K. Becker, S. Balram-Knutson, O. Barnouin, T. Becker, W. Bottke, W. Boynton, H. Campins, B. Clark, H. C. Jr Connolly, C. Y. Drouet d'Aubigny, J. Dworkin, J. Emery, H. Enos, V. Hamilton, C. Hergenrother, E. Howell, M. Izawa, H. Kaplan, M. Nolan, B. Rizk, H. Roper, D. Scheeres, P. H. Smith, K. Walsh, C. Wolner, the OSIRIS-REx Team   +29 more
semanticscholar   +1 more source

Perspective: Something Old, Something New? Review of Wasting and Other Mortality in Asteroidea (Echinodermata)

Frontiers in Marine Science, 2019
Asteroids (Echinodermata) experience mass mortality events that have the potential to cause dramatic shifts in ecosystem structure. Asteroid wasting describes a suite of body wall abnormalities that can ultimately result in animal mortality.
Ian Hewson, Brooke Sullivan, Elliot W. Jackson, Qiang Xu, Hao Long, Chenggang Lin, Eva Marie Quijano Cardé, Justin Seymour, Nachshon Siboni, Matthew R. L. Jones, Mary A. Sewell   +10 more
doaj   +1 more source

Thermography of Asteroid and Future Applications in Space Missions

Applied Sciences, 2020
The Near-Earth Asteroid 162173 Ryugu is a C-type asteroid which preserves information about the ancient Solar System and is considered enriched in volatiles such as water and organics associated with the building blocks of life, and it is a potentially ...
Tatsuaki Okada
doaj   +1 more source

Feed-Forward Neural Network Denoising Applied to Goldstone Solar System Radar Images

Remote Sensing, 2022
The study of Near-Earth Asteroids (NEA) is crucial for human safety. Small hazardous asteroids with small radar cross sections are not easy to detect, track, and characterize due to the small signal-to-noise ratio (SNR) of the radar echo. This manuscript
Nereida Rodriguez-Alvarez, Joseph S. Jao, Joan Francesc Munoz-Martin, Clement G. Lee, Kamal Oudrhiri   +4 more
doaj   +1 more source

Revisiting constraints on asteroid-mass primordial black holes as dark matter candidates [PDF]

Journal of Cosmology and Astroparticle Physics, 2019
As the only dark matter candidate that does not invoke a new particle that survives to the present day, primordial black holes (PBHs) have drawn increasing attention recently.
P. Montero-Camacho, Xiao Fang, Gabriel A. Vasquez, Makana Silva, C. Hirata   +4 more
semanticscholar   +1 more source

Chemistry in Retrieved Ryugu Asteroid Samples Revealed by Non-Invasive X-ray Microanalyses: Pink-Beam Fluorescence CT and Tender-Energy Absorption Spectroscopy

Geosciences
The Hayabusa2 space mission recently retrieved 5.4 g of material from asteroid Ryugu, providing the first direct access to pristine material from a carbonaceous asteroid. This study employs a novel combination of non-invasive synchrotron X-ray techniques
Paul Northrup, Ryan Tappero, Timothy D. Glotch, George J. Flynn, Mehmet Yesiltas, Yoko Kebukawa, Leonard Flores, Marina E. Gemma, Gavin Piccione   +8 more
doaj   +1 more source

Design and ballistic analysis of the mission for long-term study of the asteroid Apophis by a nanosatellite with an electric rocket propulsion system

Космические аппараты и технологии, 2020
The paper considers non-spherical objects with low gravitational attraction, such as asteroids, satellites of the planet and comets. We considered possibility of a mission to small bodies of the solar system of irregular shape on the example of the ...
O. L. Starinova, E. A. Sergaeva, A. Yu. Shornikov   +2 more
doaj   +1 more source

Developing Prototype Simulants for Surface Materials and Morphology of Near Earth Asteroid 2016 HO3

Space: Science & Technology, 2021
There are a variety of applications for asteroid simulants in asteroid studies for science advances as well as technology maturation. For specific purpose, it usually requires purpose-specialized simulant.
Xiaojing Zhang, Yuechen Luo, Yuan Xiao, Deyun Liu, Fan Guo, Qian Guo   +5 more
doaj   +1 more source

Modelling Detection Distances to Small Bodies Using Spacecraft Cameras

Modelling, 2023
Small bodies in the Solar System are appealing targets for scientific and technological space missions, owing to their diversity in intrinsic and extrinsic properties, besides orbit and other factors.
Vittorio Franzese, Andreas Makoto Hein
doaj   +1 more source