Results 101 to 110 of about 128,595 (322)
On the consequences of a fragmentation due to a NEO mitigation strategy [PDF]
, 2008 The fragmentation of an Earth threatening asteroid as a result of a hazard mitigation mission is examined in this paper. The minimum required energy for a successful impulsive deflection of a threatening object is computed and compared with the energy ...
Radice, G., Sanchez, J.P., Vasile, M.
core +1 more source
Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes
, 2011 Asteroid sizes can be directly measured by observing occultations of stars by asteroids. When there are enough observations across the path of the shadow, the asteroid's projected silhouette can be reconstructed.
Adrián Galád +59 more
core +2 more sources
Asteroid Surface Geophysics [PDF]
, 2015 28 pages, 8 figures. Chapter to appear in the book ASTEROIDS IV, (University of Arizona Press) Space Science Series, edited by P. Michel, F.
Murdoch, Naomi +3 more
openaire +5 more sources
Global Policy, EarlyView.ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley +1 more source
IEEE Access, 2019 An adaptive control law is proposed in this paper for body-fixed hovering over an asteroid with an unknown gravity field and an unknown rotation rate. The unknown parameters and irregular shape of an asteroid make the hovering problem challenging.
Bo Zhang, Yuanli Cai
doaj +1 more source
The Compositional Structure of the Asteroid Belt
, 2015 The past decade has brought major improvements in large-scale asteroid discovery and characterization with over half a million known asteroids and over 100,000 with some measurement of physical characterization.
Alexander, Conel M. O'D. +4 more
core +1 more source
Compression‐Expansion: Miniaturization, Modularity, and Logistics Beyond Earth
American Anthropologist, EarlyView.ABSTRACT If the Cold War space race culminated in a return to Earth, at present we are experiencing a renewed interest in space. Drawing on fieldwork among people working in the space sector in Sweden, this article focuses on some of the imaginaries underpinning this resurgence and the contemporary commercialization of space. Specifically, I hone in on
Chakad Ojani
wiley +1 more source
Images from the surface of asteroid Ryugu show rocks similar to carbonaceous chondrite meteorites
Science, 2019 Landing on the surface of Ryugu In October 2018, the Hayabusa2 spacecraft dropped the Mobile Asteroid Surface Scout (MASCOT) lander onto the surface of the asteroid (162173) Ryugu. Jaumann et al.
R. Jaumann +53 more
semanticscholar +1 more source
Near-Earth Asteroids as Possible Parent Bodies of Meteor Streams [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The genetic relationship of meteor streams with near-Earth asteroids (NEAs) is being actively studied. A genetic link with the asteroid is possible only for streams in which meteoroids have the geocentric speed smaller than 50 km/s, thereby meaning the ...
M.G. Sokolova, M.V. Sergienko
doaj
Вісник Астрономічної школи, 2013 A new method of determining the size of craters on the surfaces of atmosphereless bodies of the Solar system, called spectral-frequency method (SFM), was developed at the Crimean Astrophysical Observatory by V. V. Prokofieva-Mikhaylovska, N. A. Rublevsky
A. I. Klianchin +1 more
doaj +1 more source