Results 81 to 90 of about 821,143 (284)
Significantly high polarization degree of the very low-albedo asteroid (152679) 1998 KU2 [PDF]
, 2017 We present a unique and significant polarimetric result regarding the near-Earth asteroid (152679) 1998 KU 2 , which has a very low geometric albedo. From our observations, we find that the linear polarization degrees of 1998 KU 2 are 44.6 ± 0.5% in the ...
D. Kuroda +9 more
semanticscholar +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract This study documents micro‐ to nanoscale observations of primary nebular and secondary parent body iron sulfides in the CR1 GRO 95577. Despite the extensive alteration of the bulk sample, some primary sulfides managed to avoid alteration, having originally formed in the solar nebula during chondrule formation by either fission‐sulfidization or
S. A. Singerling
wiley +1 more source
The Secular Dynamical Evolution of Binary Asteroid System (65803) Didymos Post-DART
The Planetary Science JournalThe successful impact of NASA’s DART mission with Dimorphos, the secondary body of binary asteroid system (65803) Didymos, altered the attitude, shape, and orbit of Dimorphos.
Rachel H. Cueva +7 more
doaj +1 more source
Time-delayed feedback control in astrodynamics
, 2009 In this paper we present time-delayed feedback control (TDFC) for the purpose of autonomously driving trajectories of nonlinear systems into periodic orbits.
Biggs, James +4 more
core +1 more source
EXTREME AO OBSERVATIONS OF TWO TRIPLE ASTEROID SYSTEMS WITH SPHERE [PDF]
, 2016 We present the discovery of a new satellite of asteroid (130) Elektra—S/2014 (130) 1—in differential imaging and in integral field spectroscopy data over multiple epochs obtained with Spectro-Polarimetric High-contrast Exoplanet Research/Very Large ...
B. Yang +7 more
semanticscholar +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract Near‐Earth rubble‐pile asteroids Bennu and Ryugu are part of the carbonaceous taxonomic complex (C‐complex), and samples returned from both bodies resemble the most aqueously altered carbonaceous chondrites. However, telescopic and spacecraft visible–near infrared (VIS–NIR) reflectance spectra of Ryugu exhibit a red (positive) spectral slope ...
Ralph E. Milliken +10 more
wiley +1 more source
The Cumulation of Debris Clouds around a Fast-rotating Asteroid
The Astrophysical JournalThe rotational mass loss has been realized to be a prevalent mechanism to produce low-speed debris near the asteroid, and the size composition of the asteroid’s surface regolith has been closely measured by in situ explorations.
Chenyang Huang +5 more
doaj +1 more source
Utopia Remembers: The Soviet Past in the Imagined Communist Future
The Russian Review, EarlyView.Abstract After a twenty‐five‐year hiatus, the reappearance of utopian literature in 1957 prompted Soviet literary watchdogs to corral the subgenre into an ideologically‐acceptable mold. A key requirement was for future generations to be depicted as reverently commemorating the past.
Antony Kalashnikov
wiley +1 more source
A promising view to the Moon: Anticipations for Tianwen-2 samples returned from Kamo’oalewa
Earth and Planetary PhysicsThe exploration of asteroids has received increasing attention since the 1990s because of the unique information these objects contain about the history of the early solar system. Quasi-satellites are a population of asteroids that co-orbit closely with,
WenZhe Li +3 more
doaj +1 more source
Experimental Physiology, EarlyView.Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti +6 more
wiley +1 more source