Results 31 to 40 of about 128,595 (322)

Deflecting small asteroids using laser ablation : Deep space navigation and asteroid orbit control for LightTouch2 Mission [PDF]

open access: yes, 2013
This paper presents a low-cost, low mass, mission design to successfully intercept and deflect a small and faint, 4 m in diameter asteroid. Intended to be launched after 2025, the laser-ablating mission, LightTouch2 will be used to deflect the orbit of ...
Branco, Joao   +4 more
core   +1 more source

The collisional evolution of undifferentiated asteroids and the formation of chondritic meteoroids [PDF]

open access: yes, 2016
Most meteorites are fragments from recent collisions experienced in the asteroid belt. In such a hyper-velocity collision, the smaller collision partner is destroyed, whereas a crater on the asteroid is formed or it is entirely disrupted, too.
Beitz, Eike   +3 more
core   +2 more sources

Asteroid Photometry [PDF]

open access: yes, 2015
Asteroid photometry has three major applications: providing clues about asteroid surface physical properties and compositions, facilitating photometric corrections, and helping design and plan ground-based and spacecraft observations. The most significant advances in asteroid photometry in the past decade were driven by spacecraft observations that ...
Li, Jian Yang   +4 more
openaire   +2 more sources

Revisiting constraints on asteroid-mass primordial black holes as dark matter candidates [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2019
As the only dark matter candidate that does not invoke a new particle that survives to the present day, primordial black holes (PBHs) have drawn increasing attention recently.
P. Montero-Camacho   +4 more
semanticscholar   +1 more source

TUMBUKAN TAK-ELASTIK PARTIKEL SEBAGAI MODEL TERBENTUKNYA ASTEROID

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2017
Abstrak Suatu asteroid diduga merupakan kumpulan partikel yang bertumbukan tak-elastik sehingga membentuk suatu agregat. Ikatan yang terjadi antar partikel diasumsikan hanyalah disebabkan gaya gravitasi.
Sparisoma Viridi, Budi Dermawan
doaj   +1 more source

Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu—A spinning top–shaped rubble pile

open access: yesScience, 2019
Hayabusa2 at the asteroid Ryugu Asteroids fall to Earth in the form of meteorites, but these provide little information about their origins. The Japanese mission Hayabusa2 is designed to collect samples directly from the surface of an asteroid and return
S. Watanabe   +87 more
semanticscholar   +1 more source

THE CONDITIONS FOR APOPHIS 99942 APPROACHING EARTH IN 2029

open access: yesOdessa Astronomical Publications, 2009
The discovery of Apophis 99942 asteroid in 2004 raised a number of questions in the sphere of the asteroid threatening. On April 13, 2029, the asteroid is to pass at a close distance from Earth.
A. A. Tokovenko, А. А. Bazey
doaj   +1 more source

Short-Term Consequences of Asteroid Impacts into the Ocean: A Portuguese Case Study

open access: yesUniverse, 2022
Asteroid impacts are a proven global threat, meaning that any location on Earth might be a subject to their consequences. Such collisions are not likely in any person’s lifetime, but their aftermath could be catastrophic.
Renato H. Morais   +3 more
doaj   +1 more source

The Unexpected Surface of Asteroid (101955) Bennu

open access: yesNature, 2019
NASA’S Origins, Spectral Interpretation, Resource Identification and Security-Regolith Explorer (OSIRIS-REx) spacecraft recently arrived at the near-Earth asteroid (101955) Bennu, a primitive body that represents the objects that may have brought ...
D. Lauretta   +29 more
semanticscholar   +1 more source

Planetary defense with the Double Asteroid Redirection Test (DART) mission and prospects

open access: yesNature Communications, 2023
NASA’s Double Asteroid Redirection Test (DART) mission intentionally impacted the asteroid Dimorphos on September 26, 2022, and this kinetic impact changed Dimorphos’ orbit around its binary companion Didymos.
Andrew S. Rivkin, Andrew F. Cheng
doaj   +1 more source

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