Results 21 to 30 of about 15,866 (198)
Surface Geology of Jupiter’s Trojan Asteroids
Space Science Reviews, 2023 AbstractThe surface geology of Jupiter’s Trojan asteroids is one of the scientific investigations of the NASALucymission. A dedicated Geology Working Group will implement these studies using primarily panchromatic and color imaging data and complement the interpretation of these data with theoretical models, such as collisional evolution models ...
S. Marchi +3 more
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The Planetary Science Journal, 2023 Ejecta from Dimorphos following the DART mission impact significantly increased the brightness of the Didymos–Dimorphos system, allowing us to examine subsurface material.
David Polishook +6 more
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Laboratory impact splash experiments to simulate asteroid surfaces [PDF]
Icarus, 2020 Granular material that is bound by the low gravity of a small asteroid is mobilized by slow velocity impacts. These splashes generated by impacts might play an important role in sculpting the asteroid's surface. In laboratory experiments we characterize the ejecta generated by spherical 150 $\rm m$ diameter basalt grains impacting a granular bed at 0.
Bogdan, Tabea +4 more
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The Planetary Science Journal, 2023 Near-Earth asteroids (NEAs) are a key test bed for investigations into planet formation, asteroid dynamics, and planetary defense initiatives. These studies rely on understanding NEA sizes, albedo distributions, and regolith properties.
Samuel A. Myers +6 more
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Scaling forces to asteroid surfaces: The role of cohesion
, 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
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OSIRIS-APEX: An OSIRIS-REx Extended Mission to Asteroid Apophis
The Planetary Science Journal, 2023 The Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) spacecraft mission characterized and collected a sample from asteroid (101955) Bennu.
Daniella N. DellaGiustina +53 more
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A Spectroscopic Comparison of HED Meteorites and V-type Asteroids in the Inner Main Belt [PDF]
, 2010 V-type asteroids in the inner Main Belt (a < 2.5 AU) and the HED meteorites are thought to be genetically related to one another as collisional fragments from the surface of the large basaltic asteroid 4 Vesta.
Binzel, Richard +4 more
core +2 more sources
Poincar\'e surfaces of section around a 3-D irregular body: The case of asteroid 4179 Toutatis
, 2017 In general, small bodies of the solar system, e.g., asteroids and comets, have a very irregular shape. This feature affects significantly the gravitational potential around these irregular bodies, which hinders dynamical studies.
Motta, Gabriel Borderes +1 more
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An Asteroid Lander/Rover for Asteroid Surface Gravity Surveying
, 2016 Microsat and nanosat developers have mastered the challenges involved in developing low-cost, high-performance satellite missions in low Earth orbit. Here we describe a proposed small-microsat-scale (~20 kg) planetary exploration mission based on the same design approach used in those LEO missions.
Carroll, Kieran A. +2 more
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Simulating the (99942) Apophis Earth Flyby Using a Contact Binary Model
The Planetary Science JournalThis 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
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