Results 41 to 50 of about 128,595 (322)
Sample collection from asteroid (162173) Ryugu by Hayabusa2: Implications for surface evolution
Science, 2020 Collecting a sample of asteroid Ryugu The Hayabusa2 spacecraft recently traveled to the nearby carbonaceous asteroid Ryugu to collect samples and return them to Earth for laboratory analysis. Morota et al.
T. Morota +94 more
semanticscholar +1 more source
The Planetary Science Journal, 2023 Asteroid diameters are traditionally difficult to estimate. When a direct measurement of the diameter cannot be made through either occultation or direct radar observations, the most common method is to approximate the diameter from infrared observations.
Zachary Murray
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Mirror formation control in the vicinity of an asteroid [PDF]
, 2008 Two strategies are presented for the positioning and control of a spacecraft formation designed to focus sunlight onto a point on the surface of asteroid, thereby sublimating the material and ejecting debris creating thrust.
Battin R. H. +11 more
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Nature Communications, 2023 On September 26th 2022, LICIACube monitored Double Asteroid Redirection Test (DART) mission impact on asteroid Dimorphos, which is the smaller component of a binary asteroid system.
Elisabetta Dotto, Angelo Zinzi
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Variations in color and reflectance on the surface of asteroid (101955) Bennu
Science, 2020 The complex history of Bennu's surface The near-Earth asteroid (101955) Bennu is a carbon-rich body with a rubble pile structure, formed from debris ejected by an impact on a larger parent asteroid.
D. DellaGiustina +61 more
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Odessa Astronomical Publications, 2017 Description of the method of temporal unsqueezing CCD-images is presented for observations of asteroids occultations. The method was applied for observations of 9 asteroid occultations with telescope AZT - 8 (D = 0.7m, F = 2.8m) and CCD ST - 8MXE in ...
F. I. Kravtsov, I. V. Lukyanyk
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A multi-mirorr solution for the deflection of dangerous NEOS [PDF]
, 2009 This paper presents some recent results on the deflection of potentially dangerous Near Earth Objects. A particular deflection technique, employing a swarm of mirrors focusing the light of the Sun on the surface of the asteroid, is described.
Hu +9 more
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Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction
Proceedings of the National Academy of Sciences of the United States of America, 2020 Significance We present a quantitative test of end-Cretaceous extinction scenarios and how these would have affected dinosaur habitats. Combining climate and ecological modeling tools, we demonstrate a substantial detrimental effect on dinosaur habitats ...
Alfio Alessandro Chiarenza +6 more
semanticscholar +1 more source
Asteroid Photometric Phase Functions From Bayesian Lightcurve Inversion
Frontiers in Astronomy and Space Sciences, 2022 Photometry is an important tool for characterizing the physical properties of asteroids. An asteroid’s photometric lightcurve and phase curve refer to the variation of the asteroid’s disk-integrated brightness in time and in phase angle (the Sun-asteroid-
Karri Muinonen +7 more
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Asteroid occultations today and tomorrow: toward the GAIA era [PDF]
, 2007 Context: Observation of star occultations is a powerful tool to determine shapes and sizes of asteroids. This is key information necessary for studying the evolution of the asteroid belt and to calibrate indirect methods of size determination, such as ...
Delbo, M., Tanga, P.
core +5 more sources