Results 81 to 90 of about 447,866 (197)

Evaluating Short-warning Mitigation via Intentional Robust Disruption of a Hypothetical Impact of Asteroid 2023 NT1

open access: yesThe Astrophysical Journal
We investigate various short-warning mitigation scenarios via fragmentation for a hypothetical impact of asteroid 2023 NT1, a near-Earth object (NEO) that was discovered on 2023 July 15, two days after its closest approach to Earth on July 13.
Brin Bailey   +10 more
doaj   +1 more source

How to make a comet [PDF]

open access: yes
The primary mandate of NASA is the study of the nature and origin of the solar system. The study of the comets provide information about conditions and processes at the beginning of the solar system.
Fanale, Fraser   +2 more
core   +2 more sources

Optimized Asteroid Rotation and Shape Modeling through an Integrated Shape-from-silhouette and Optical Flow Approach

open access: yesThe Astronomical Journal
Asteroids offer valuable insights into the formation and evolution of the solar system. Understanding their rotation and shape is essential for studying asteroid collision histories and geological processes, as well as for planning exploration missions ...
Yi Liu, Bo Wu, Hongliang Li
doaj   +1 more source

Surface Heterogeneity, Physical, and Shape Model of Near-Earth Asteroid (52768) 1998 OR2

open access: yesThe Planetary Science Journal
On 2020 April 29, the near-Earth object (52768) 1998 OR2 experienced a close approach to Earth at a distance of 16.4 lunar distances (LD). 1998 OR2 is a potentially hazardous asteroid of absolute magnitude H = 16.04 that can currently come as close to ...
Maxime Devogèle   +39 more
doaj   +1 more source

Statistical Analysis of Near Earth Objects [PDF]

open access: yes
In this paper, we explore the statistical properties of Near Earth Objects (NEOs). It is determined whether the date has an effect on the quantity of NEOs observed, as well as if the velocities, sizes and orbit types of the NEO are correlated with the ...
Danielle Bisordi, Kristin Buckley
core  

Optimal detection of near-earth objects [PDF]

open access: yes, 1997
Improved technology and search strategies could significantly increase debris detection rates and tracking accuracies with modest investment. Improving the focal planes of current telescopes could significantly increase detection rates. For large systems, proportional increases in aperture area and array size are appropriate.
openaire   +2 more sources

Surveying of the solar system [PDF]

open access: yes
Some populations of objects in the solar system are poorly known, and the long range goal of this program is to improve that situation. For instance, the statistics of Trojan asteroids is being studied.
Gehrels, Tom
core   +1 more source

Near Earth Objects

open access: yes, 2006
The word planet comes from Greek planetes, wanderers, because the planets appear to wander across the celestial sphere, contrary to the fixed stars. This thesis presents several methods for using this motion to distinguish between stars and solar system objects in order to detect and track NEOs, Near Earth Objects: Asteroids and comets following paths ...
openaire   +1 more source

Hydration Features on Near-Earth Objects: Integrating New Data with Prior Results

open access: yesThe Planetary Science Journal
Near-Earth objects (NEOs) are excellent laboratories for testing processes that affect airless bodies, as well as informing us about solar system history. Though most NEOs are nominally anhydrous because they formed inside the solar system frost line and
L. E. McGraw   +3 more
doaj   +1 more source

DART Impact Ejecta Plume Evolution: Implications for Dimorphos

open access: yesThe Planetary Science Journal
The NASA Double Asteroid Redirection Test (DART) spacecraft impacted the moon Dimorphos of the [65803] Didymos binary system and changed the binary orbit period, demonstrating asteroid deflection by a kinetic impact and indicating that more momentum was ...
Andrew F. Cheng   +31 more
doaj   +1 more source

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