Results 41 to 50 of about 16,106 (245)

Jupiter – friend or foe? I: the asteroids [PDF]

open access: yes, 2008
The asteroids are a major source of potential impactors on the Earth today. It has long been assumed that the giant planet Jupiter acts as a shield, significantly lowering the impact rate on the Earth from both cometary and asteroidal bodies.
Horner, J.   +3 more
core   +1 more source

Sampling, Mobility, and Anchoring in Small‐Body Sampling Robots: A Comprehensive Review

open access: yesSmartBot, 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

Experimental analysis of laser ablated plumes for asteroid deflection and exploitation

open access: yes, 2013
It has been theoretically demonstrated that laser ablation is effective in the potential deflection and mitigation of asteroids. However, there have been few experimental studies to support this claim.
Watson, Ian   +5 more
core   +1 more source

The Stripping Method for X‐Ray Spectral Correction in ISO 4037‐1 Narrow Spectra Series (N10‐N150)

open access: yesX-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

The Distribution of Highly Red-sloped Asteroids in the Middle and Outer Main Belt

open access: yesThe Planetary Science Journal
Red ( S > 10%/0.1 μ m) spectral slopes are common among Centaurs and trans-Neptunian objects (TNOs) in the outer solar system. Interior to and co-orbital with Jupiter, the red ( S ∼ 10%/0.1 μ m) slopes of D-type main-belt and Jupiter Trojan asteroids are
Oriel A. Humes   +2 more
doaj   +1 more source

Design of a formation of solar pumped lasers for asteroid deflection

open access: yes, 2012
This paper presents the design of a multi-spacecraft system for the deflection of asteroids. Each spacecraft is equipped with a fibre laser and a solar concentrator.
Vasile, Massimiliano, Maddock, Christie
core   +1 more source

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

open access: yesGlobal 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

Evidence for Random Walk Transport of Small Asteroids from the Main Belt to the Inner Solar System

open access: yesThe Planetary Science Journal
The transport of some main-belt asteroids to the inner solar system depends on Yarkovsky radiation forces changing the orbits of those asteroids. However, these forces depend on the rotational states of the asteroids, and YORP radiation forces act to ...
Stanley F. Dermott   +2 more
doaj   +1 more source

Technologized Reproduction in Space: A Space‐Bioethical Case for Assisted Procreation

open access: yesBioethics, 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

Dynamic 3D Simulation of Surface Charging on Rotating Asteroids

open access: yesThe Astrophysical Journal
The surface-charging phenomenon of asteroids, mainly resulting from solar wind plasma and solar radiation, has been extensively studied. However, the influence of the asteroid’s rotation on surface charging is not yet fully understood.
Ronghui Quan, Zhiying Song, Zhigui Liu
doaj   +1 more source

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