Results 41 to 50 of about 21,781 (220)

Accessibility of the resources of near Earth space using multi-impulse transfers [PDF]

open access: yes, 2010
Most future concepts for exploration and exploitation of space require a large initial mass in low Earth orbit. Delivering this mass requires overcoming Earth's natural gravity well, which imposes a distinct obstacle to space-faring.
Bonanno C.   +6 more
core   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos   +6 more
wiley   +1 more source

A Systemic Reflection On Why Biology Is Best : E(s) ∞$$ \infty $$ mc2 Sentience, Consciousness and Transcendance?

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT The short essay makes a case that a post biological world will be a devolution. Sentience is a relational process linked with the awe and wonder we experience in relation to one another and our shared habitat. The voiceless need to be protected by extending solidarity on the basis of sentience—a normative plea, but also on the basis of ...
J. J. McIntyre‐Mills
wiley   +1 more source

BYORP and Dissipation in Binary Asteroids: Lessons from DART

open access: yesThe Planetary Science Journal
The near-Earth binary asteroid Didymos was the target of the planetary defense demonstration mission DART in 2022 September. The smaller binary component, Dimorphos, was impacted by the spacecraft in order to measure momentum transfer in kinetic impacts ...
Matija Ćuk   +12 more
doaj   +1 more source

System Modeling and Simulation of TianWen-2 Sampling on an Asteroid Regolith Surface

open access: yesSpace: Science & Technology
As China’s first asteroid exploration mission, the TianWen-2 spacecraft mainly focuses on surface sampling on the near-Earth asteroid 2016 HO3. Different from the usual sampling strategy of releasing a small lander or ejecting a projectile, the whole ...
He Zhang   +10 more
doaj   +1 more source

Scaling forces to asteroid surfaces: The role of cohesion

open access: yes, 2010
The scaling of physical forces to the extremely low ambient gravitational acceleration regimes found on the surfaces of small asteroids is performed. Resulting from this, it is found that van der Waals cohesive forces between regolith grains on asteroid ...
Hartzell, C. M.   +3 more
core   +1 more source

Virility, fascism and regeneration in post‐Civil War Spain: On interpretations of literary Romanticism under the Franco regime

open access: yesGender &History, EarlyView.
Abstract In the years immediately following the Spanish Civil War, the political culture of Falangism developed a deeply gendered regenerationist discourse, which proposed that regeneration would only be possible if the nation recovered its virile attributes.
Zira Box
wiley   +1 more source

The Secular Dynamical Evolution of Binary Asteroid System (65803) Didymos Post-DART

open access: yesThe Planetary Science Journal
The 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

Recurring Activity Discovered on Quasi-Hilda 2009 DQ118

open access: yesThe Astrophysical Journal Letters, 2023
We have discovered two epochs of activity on quasi-Hilda 2009 DQ _118 . Small bodies that display comet-like activity, such as active asteroids and active quasi-Hildas, are important for understanding the distribution of water and other volatiles ...
William J. Oldroyd   +12 more
doaj   +1 more source

Asteroid 2014 OL339: yet another Earth quasi-satellite

open access: yes, 2014
Our planet has one permanently bound satellite -the Moon-, a likely large number of mini-moons or transient irregular natural satellites, and three temporary natural retrograde satellites or quasi-satellites. These quasi-moons -(164207) 2004 GU9, (277810)
Marcos, C. de la Fuente   +1 more
core   +1 more source

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