Results 41 to 50 of about 6,968,082 (173)
Sublimation-induced orbital perturbations of extrasolar active asteroids and comets: application to white dwarf systems [PDF]
, 2015 The metal budgets in some white dwarf (WD) atmospheres reveal that volatile-rich circumstellar bodies must both exist in extrasolar systems and survive the giant branch phases of stellar evolution.
D. Veras, S. Eggl, B. Gaensicke
semanticscholar +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Ballistic landing design on binary asteroids: The AIM case study
Advances in Space Research, 2017 The close-proximity exploration of small celestial bodies of our Solar System is the current frontier of space exploration. Trajectory design and exploitation of the natural dynamics around such bodies represents a very challenging astrodynamics problem,
F. Ferrari, M. Lavagna
semanticscholar +1 more source
Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review
SmartBot, EarlyView.Small‐body sampling robots are exploration systems that perform contact, sampling, and stable operations on microgravity bodies such as asteroids and comets. The authors review representative robot architectures and key technologies, focusing on the mechanisms, evolution, and coupling of sampling, mobility, and anchoring.
Yurui Shen +7 more
wiley +1 more source
Prospects of Dynamical Determination of General Relativity Parameter β and Solar Quadrupole Moment with Asteroid Radar Astronomy [PDF]
, 2017 We evaluated the prospects of quantifying the parameterized post-Newtonian parameter β and solar quadrupole moment with observations of near-Earth asteroids with large orbital precession rates (9 to 27 arcsec century−1).
A. Verma, J. Margot, A. Greenberg
semanticscholar +1 more source
The Stripping Method for X‐Ray Spectral Correction in ISO 4037‐1 Narrow Spectra Series (N10‐N150)
X-Ray Spectrometry, EarlyView.ABSTRACT Spectrometry is an important tool for the characterization of X‐ray beams in ionizing radiation metrology. However, the use of solid‐state spectrometers for accurate measurements requires correction of spectral distortions caused by the interaction between photons and the detector.
Matheus Rebello do Nascimento +4 more
wiley +1 more source
Asteroids in retrograde resonance with Jupiter and Saturn [PDF]
, 2013 We identify a set of asteroids among Centaurs and Damocloids, that orbit contrary to thecommon direction of motion in the Solar System and that enter into resonance with Jupiterand Saturn.
M. Morais, F. Namouni
semanticscholar +1 more source
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
Technologized Reproduction in Space: A Space‐Bioethical Case for Assisted Procreation
Bioethics, EarlyView.ABSTRACT With the increasing feasibility of space colonization, the issue of reproduction in space is becoming more relevant. As new settlements on the Moon, Mars, and other celestial bodies emerge, ensuring generational continuity will be essential for the survival and growth of these communities.
Maurizio Balistreri, Konrad Szocik
wiley +1 more source
Detection of Earth-impacting asteroids with the next generation all-sky surveys [PDF]
Icarus, 2009 We have performed a simulation of a next generation sky survey's (Pan-STARRS 1) efficiency for detecting Earth-impacting asteroids. The steady-state sky-plane distribution of the impactors long before impact is concentrated towards small solar elongations (Chesley and Spahr, 2004) but we find that there is interesting and potentially exploitable ...
Vereš, Peter +7 more
openaire +2 more sources