Results 81 to 90 of about 24,389,785 (159)

Assessment on the feasibility of future shepherding of asteroid resources [PDF]

, 2010
Most plausible futures for space exploration and exploitation require a large mass in Earth orbit. Delivering this mass requires overcoming the Earth's natural gravity well, which imposes a distinct obstacle to any future space venture.
Sanchez, J.P., McInnes, C.R.
core   +1 more source

Near-infrared spectral variation in Ryugu particles and implication for rapid space weathering by solar UV radiation

Scientific Reports
The 2.7 µm absorption band, represented by OH groups, in the near-infrared reflectance spectra of primitive Solar System bodies could be an indicator of the cause and degree of space weathering.
S. Furukawa, T. Okada, K. Hatakeda, R. Kanemaru, K. Yogata, T. Yada, M. Abe, T. Usui, C. Pilorget, V. Hamm, R. Brunetto, D. Loizeau, L. Riu, T. Le Pivert-Jolivet, S. Sasaki, Y. Egashira, T. Hiroi, H. Kaiden, A. Miyazaki, K. Nagashima, R. Tahara, Y. Sugiyama, A. Nakano, T. Ojima, Y. Hitomi, K. Kumagai, M. Nishimura, J.-P. Bibring   +27 more
doaj   +1 more source

A primordial noble gas component discovered in the Ryugu asteroid and its implications

Nature Communications
Ryugu is the C-type asteroid from which material was brought to Earth by the Hayabusa2 mission. A number of individual grains and fine-grained samples analysed so far for noble gases have indicated that solar wind and planetary (known as P1) noble gases ...
Alexander B. Verchovsky, Feargus A. J. Abernethy, Mahesh Anand, Ian A. Franchi, Monica M. Grady, Richard C. Greenwood, Simeon J. Barber, Martin Suttle, Motoo Ito, Naotaka Tomioka, Masayuki Uesugi, Akira Yamaguchi, Makoto Kimura, Naoya Imae, Naoki Shirai, Takuji Ohigashi, Ming-Chang Liu, Kentaro Uesugi, Aiko Nakato, Kasumi Yogata, Hayato Yuzawa, Yuzuru Karouji, Satoru Nakazawa, Tatsuaki Okada, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Makoto Yoshikawa, Akiko Miyazaki, Masahiro Nishimura, Toru Yada, Masanao Abe, Tomohiro Usui, Sen-ichiro Watanabe, Yuichi Tsuda, Consortium Phase2 curation team Kochi   +35 more
doaj   +1 more source

Near-Earth asteroid resource accessibility and future capture mission opportunities [PDF]

, 2012
In-Situ Resource Utilization (ISRU) has always been suggested for ambitious space endeavours; and asteroids and comets in particular are generally agreed to be ideal sources, both in terms of its accessibility and wealth.
Sanchez Cuartielles, Joan-Pau, Garcia Yarnoz, Daniel, McInnes, Colin   +2 more
core   +1 more source

Gravitational capture opportunites for asteroid retrieval missions [PDF]

, 2012
Asteroids and comets are of strategic importance for science in an effort to uncover the formation, evolution and composition of the Solar System. Near-Earth objects (NEOs) are of particular interest because of its accessibility from Earth, but also ...
Sanchez Cuartielles, Joan-Pau, Garcia Yarnoz, Daniel, Alessi, Elisa Maria, McInnes, Colin   +3 more
core   +1 more source

Abundant microchondrules in 162173 Ryugu suggest a turbulent origin for primitive asteroids

Nature Communications
Chondrules are a characteristic feature of primitive Solar System materials and are common in all primitive meteorites except the CI-chondrites. They are thought to form owing to melting of solid dust aggregates by energetic processing within the solar ...
Matthew J. Genge, Natasha V. Almeida, Matthias van Ginneken, Lewis Pinault, Tobias Salge, Penelope J. Wozniakiewicz, Hajime Yano, Steven J. Desch   +7 more
doaj   +1 more source

Taxonomic classification of 80 near-Earth asteroids

Earth and Planetary Physics
Near-Earth objects are important not only in studying the early formation of the Solar System, but also because they pose a serious hazard to humanity when they make close approaches to the Earth.
Fan Mo, Bin Li, HaiBin Zhao, Jian Chen, Yan Jin, MengHui Tang, Igor Molotov, A.M. Abdelaziz, A. Takey, S.K. Tealib, Ahmed. Shokry, JianYang Li   +11 more
doaj   +1 more source

MEGASIM: Distribution and Detection of Earth Trojan Asteroids

The Astrophysical Journal
Using N -body simulation results from the MEGASIM data set, we present spatial distributions of Earth Trojan Asteroids and assess the detectability of the population in current and next-generation ground-based astronomical surveys.
Travis Yeager, Nathan Golovich, Kerianne Pruett   +2 more
doaj   +1 more source

Enantioselective three-dimensional high-performance liquid chromatographic determination of amino acids in the Hayabusa2 returned samples from the asteroid Ryugu

Journal of Chromatography Open
The chirality of amino acids in extraterrestrial materials may provide an insight into the origin of the essential l-enantiopure amino acids in the terrestrial biosphere.
Aogu Furusho, Chiharu Ishii, Takeyuki Akita, Mai Oyaide, Masashi Mita, Hiroshi Naraoka, Yoshinori Takano, Jason P. Dworkin, Yasuhiro Oba, Toshiki Koga, Kazuhiko Fukushima, Dan Aoki, Minako Hashiguchi, Hajime Mita, Yoshito Chikaraishi, Naohiko Ohkouchi, Nanako O. Ogawa, Saburo Sakai, Daniel P. Glavin, Jamie E. Elsila, Eric T. Parker, José C. Aponte, Hannah L. McLain, Francois-Regis Orthous-Daunay, Véronique Vuitton, Roland Thissen, Cédric Wolters, Philippe Schmitt-Kopplin, Alexander Ruf, Junko Isa, Norbert Hertkorn, John M. Eiler, Toshihiro Yoshimura, Haruna Sugahara, Heather V. Graham, Yoshihiro Furukawa, Daisuke Araoka, Satoru Tanaka, Takaaki Yoshikawa, Fumie Kabashima, Kazunori Sasaki, Hajime Sato, Tomoya Yamazaki, Morihiko Onose, Mayu Morita, Yuki Kimura, Kuniyuki Kano, Junken Aoki, Kosuke Fujishima, Shin-ichiro Nomura, Shogo Tachibana, Tomoki Nakamura, Takaaki Noguchi, Ryuji Okazaki, Hikaru Yabuta, Hisayoshi Yurimoto, Kanako Sakamoto, Toru Yada, Masahiro Nishimura, Aiko Nakato, Akiko Miyazaki, Kasumi Yogata, Masanao Abe, Tomohiro Usui, Makoto Yoshikawa, Takanao Saiki, Satoshi Tanaka, Fuyuto Terui, Satoru Nakazawa, Tatsuaki Okada, Sei-ichiro Watanabe, Yuichi Tsuda, Kenji Hamase   +72 more
doaj   +1 more source

TITAN DR1: An Improved, Validated, and Systematically Controlled Recalibration of ATLAS Photometry toward Type Ia Supernova Cosmology

The Astrophysical Journal
ATLAS (Asteroid Terrestrial Last Alert System) is a time-domain survey using four telescopes, covering the entire sky. It has observed 8378 spectroscopically confirmed Type Ia supernovae (SNe Ia), with thousands of cosmology-grade light curves (to be ...
Elijah G. Marlin, Yukei S. Murakami, Dillon Brout, Jack W. Tweddle, Brodie Popovic, Ken W. Smith, Stephen J. Smartt, Daniel M. Scolnic, David Jones, Erik R. Peterson, Adam G. Riess, Maria Vincenzi, Nora F. Sherman, Maria Acevedo, Jasper Milstein, Mitchell Dixon, Armin Rest   +16 more
doaj   +1 more source