Results 191 to 200 of about 1,838 (234)

Evidence for multi-fragmentation and mass shedding of boulders on rubble-pile binary asteroid system (65803) Didymos. [PDF]

Nat Commun
Pajola M, Tusberti F, Lucchetti A, Barnouin O, Cambioni S, Ernst CM, Dotto E, Daly RT, Poggiali G, Hirabayashi M, Nakano R, Epifani EM, Chabot NL, Della Corte V, Rivkin A, Agrusa H, Zhang Y, Penasa L, Ballouz RL, Ivanovski S, Murdoch N, Rossi A, Robin C, Ieva S, Vincent JB, Ferrari F, Raducan SD, Campo-Bagatin A, Parro L, Benavidez P, Tancredi G, Karatekin Ö, Trigo-Rodriguez JM, Sunshine J, Farnham T, Asphaug E, Deshapriya JDP, Hasselmann PHA, Beccarelli J, Schwartz SR, Abell P, Michel P, Cheng A, Brucato JR, Zinzi A, Amoroso M, Pirrotta S, Impresario G, Bertini I, Capannolo A, Caporali S, Ceresoli M, Cremonese G, Dall'Ora M, Gai I, Casajus LG, Gramigna E, Manghi RL, Lavagna M, Lombardo M, Modenini D, Palumbo P, Perna D, Tortora P, Zannoni M, Zanotti G.   +65 more
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A mathematical formulation and computational exploration of Yayoi Kusama's tentacle artworks. [PDF]

Sci Rep
Iliatanov D, Ostrovsky M, Pustějovský M, Gul S.   +3 more
europepmc   +1 more source

Abiotic sugars in (162173) Ryugu and the primitive CI carbonaceous chondrite Orgueil

Meinert C, Leyva V, Robert M, Pepino R, Bocková J.   +4 more
europepmc   +1 more source

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Optical maturation of asteroid surfaces

Icarus, 2013
Abstract Analysis of laboratory experiments simulating space weathering optical effects on atmosphereless planetary bodies reveals that the time needed to alter the spectrum of an ordinary chondrite meteorite to resemble the overall spectral shape and slope of an S-type asteroid is about ∼10 5  yr.
L F Golubeva, Edward A Cloutis
exaly   +2 more sources

SPACE WEATHERING OF ASTEROID SURFACES

Annual Review of Earth and Planetary Sciences, 2004
▪ Abstract  Visible and near-infrared spectra of reflected sunlight from asteroid surfaces exhibit features that hold the promise for identifying surface mineralogy. However, the very surfaces that are observed by remote-sensing are also subject to impingement by micrometeoroids and solar wind particles, which are believed to play the dominant role in ...
Clark R Chapman
exaly   +2 more sources

The effect of a rocky terrain for CubeSat landing on asteroid surfaces [PDF]

Advances in Space Research, 2023
The paper describes a general modelling procedure to build a simulation tool to investigate contact motion of a CubeSat on an aster-oid surface. We investigate landing performance and landing success for the case of elastic rocky terrain and flat ...
Fabio Ferrari, Francesco Topputo
exaly   +2 more sources

Asteroidal agglutinate formation and implications for asteroidal surfaces

Icarus, 1981
The possible role of spallation on the free surfaces of target bodies in asteroid surface evolution in the presence of colliding bodies is considered. The ease of impact melt formation is discussed based on the results of shock recovery experiments, and a difference between collisions with dense, nonporous targets and with porous, particulate powders ...
Friedrich Hörz, Rand B. Schaal
openaire   +1 more source

Detection of ice and organics on an asteroidal surface

Nature, 2010
Recent observations, including the discovery in typical asteroidal orbits of objects with cometary characteristics (main-belt comets, or MBCs), have blurred the line between comets and asteroids, although so far neither ice nor organic material has been detected on the surface of an asteroid or directly proven to be an asteroidal constituent.
Andrew S, Rivkin, Joshua P, Emery
openaire   +2 more sources

SinGAN-Based Asteroid Surface Image Generation

Journal of Database Management, 2021
While it is risky considering spacecraft constraints and unknown environment on asteroid, surface sampling is an important technique for asteroid exploration. One of the sample return missions is to seek an optimal landing site, which may be in hazardous terrain.
Yundong Guo, Jeng-Shyang Pan 0001, Chengbo Qiu, Fang Xie, Hao Luo 0001, Huiqiang Shang, Zhenyu Liu 0005, Jianrong Tan   +7 more
openaire   +1 more source

Developing space weathering on the asteroid 25143 Itokawa

Nature, 2006
There has been a long-standing problem that the parent bodies of ordinary chondrites, the most abundant type of meteorites, do not seem abundant among asteroids.
Takahiro Hiroi, Masanao Abe, Kohei Kitazato   +2 more
exaly   +2 more sources