Results 151 to 160 of about 50,771 (302)

Size and Spatial Distributions of Sub-km Main-Belt Asteroids [PDF]

open access: bronze, 2003
Fumi Yoshida   +5 more
openalex   +1 more source

Precise Orbit Determination of Mars-crossing Asteroids

open access: yesThe Astronomical Journal
This study investigates the orbit determination of the Mars-crossing asteroids (MCAs) with a focus on the possibility of detecting their Yarkovsky signals. We analyze the influences of force model uncertainties on MCA orbits, including the uncertainty of
Xin Liu   +6 more
doaj   +1 more source

Surface Ages for the Sample Return Asteroids Bennu, Ryugu, and Itokawa

open access: yesThe Planetary Science Journal
The OSIRIS-REx, Hayabusa2, and Hayabusa missions have returned samples from three near-Earth asteroids (NEAs), namely Bennu, Ryugu, and Itokawa, respectively.
William F. Bottke   +8 more
doaj   +1 more source

Earth-Approaching Asteroids as Targets for Exploration [PDF]

open access: yes
A mission strategy focused on the earth approaching asteroids is presented. The opportunities for sample return and manned visits favor the closer Apollos and Amors over the main belt ...
Helin, E. F., Shoemaker, E. M.
core   +1 more source

Unusual Space Weathering on a CE-5 Metal Grain Indicates Deceptive Surface Signatures of M-type Asteroids

open access: yesThe Astrophysical Journal Letters
M-type asteroids are historically thought to be exposed metallic cores of differentiated planets with a composition dominated by pure iron and nickel. However, recent spectral and radar observations reveal an insufficient number of M-type asteroids in ...
Tian Zhang   +7 more
doaj   +1 more source

Herschel celestial calibration sources: Four large main-belt asteroids as prime flux calibrators for the far-IR/sub-mm range

open access: green, 2013
T. G. Mueller   +11 more
openalex   +2 more sources

Asteroid Collisions: Expected Visibility and Rate

open access: yesThe Astronomical Journal
Asteroid collisions are one of the main processes responsible for the evolution of bodies in the main belt. Using observations of the Dimorphos impact by the DART spacecraft, we estimate how asteroid collisions in the main belt may look in the first ...
Eran O. Ofek   +11 more
doaj   +1 more source

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