Results 51 to 60 of about 21,905 (255)

Asteroid flux towards circumprimary habitable zones in binary star systems: I. Statistical Overview

open access: yes, 2015
So far, multiple stellar systems harbor more than 130 extra solar planets. Dynamical simulations show that the outcome of planetary formation process can lead to various planetary architecture (i.e.
Bancelin, D.   +6 more
core   +2 more sources

Simulating the (99942) Apophis Earth Flyby Using a Contact Binary Model

open access: yesThe Planetary Science Journal
This paper investigates the mass shifts of asteroid (99942) Apophis during its 2029 close encounter with Earth, using the contact dynamics method, a type of discrete element method. Unlike previous analyses, we model the asteroid as a contact binary body
Hai-Shuo Wang   +2 more
doaj   +1 more source

Resonances in the asteroid and trans-Neptunian belts: a brief review

open access: yes, 2018
Mean motion resonances play a fundamental role in the dynamics of the small bodies of the Solar System. The last decades of the 20th century gave us a detailed description of the dynamics as well as the process of capture of small bodies in coplanar or ...
Gallardo, Tabare
core   +1 more source

Radar contributions to asteroid astrometry and dynamics [PDF]

open access: yesCELESTIAL MECHANICS AND DYNAMICAL ASTRONOMY, 1997
Almost every radar observation of asteroids has measured some characteristics of the distribution of echo power in time delay (range) and Doppler frequency (radial velocity). Such measurements, which are orthogonal to optical plane-of-sky angular astrometry, are also done in the well-known, “absolute” reference frame of the planetary ephemerides, often
openaire   +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

On the Erigone family and the $z_2$ secular resonance [PDF]

open access: yes, 2015
The Erigone family is a C-type group in the inner main belt. Its age has been estimated by several researchers to be less then 300 My, so it is a relatively young cluster.
Aljbaae, Safwan   +2 more
core   +2 more sources

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

Dynamical evolution of the Cybele asteroids [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
The Cybele region, located between the 2J:-1A and 5J:-3A mean-motion resonances, is adjacent and exterior to the asteroid main belt. An increasing density of three-body resonances makes the region between the Cybele and Hilda populations dynamically unstable, so that the Cybele zone could be considered the last outpost of an extended main belt.
Carruba, V   +3 more
openaire   +3 more sources

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