Results 61 to 70 of about 21,905 (255)
Gender &History, EarlyView.Abstract In the years immediately following the Spanish Civil War, the political culture of Falangism developed a deeply gendered regenerationist discourse, which proposed that regeneration would only be possible if the nation recovered its virile attributes.
Zira Box
wiley +1 more source
The Secular Dynamical Evolution of Binary Asteroid System (65803) Didymos Post-DART
The Planetary Science JournalThe successful impact of NASA’s DART mission with Dimorphos, the secondary body of binary asteroid system (65803) Didymos, altered the attitude, shape, and orbit of Dimorphos.
Rachel H. Cueva +7 more
doaj +1 more source
Recurring Activity Discovered on Quasi-Hilda 2009 DQ118
The Astrophysical Journal Letters, 2023 We have discovered two epochs of activity on quasi-Hilda 2009 DQ _118 . Small bodies that display comet-like activity, such as active asteroids and active quasi-Hildas, are important for understanding the distribution of water and other volatiles ...
William J. Oldroyd +12 more
doaj +1 more source
Semi-analytical guidance algorithm for autonomous close approach to non-cooperative low-gravity targets [PDF]
, 2014 An adaptive guidance algorithm for close approach to and precision landing on uncooperative low-gravity objects (e.g. asteroids) is proposed. The trajectory, updated by means of a minimum fuel optimal control problem solving, is expressed in a polynomial
Armellin, Roberto +2 more
core
Meteoritics &Planetary Science, EarlyView.Abstract We report new results from a study of shock‐related features in the L6 ordinary chondrites Northwest Africa (NWA) 4672 and NWA 12841. Our observations confirm the occurrence of eight high‐pressure (HP) minerals in each meteorite, namely, ringwoodite, majorite, akimotoite, wadsleyite, albitic jadeite, lingunite, tuite, and xieite.
I. Baziotis +5 more
wiley +1 more source
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
doaj +1 more source
Time-Fixed Glideslope Guidance for Approaching the Proximity of an Asteroid
Aerospace, 2021 The guidance and control problem of spacecraft approaching an asteroid using constant continuous thrust is studied in this work. The range of interest is from hundreds of kilometers to several kilometers, in which relative measurements of much higher ...
Jinlin Wang +3 more
doaj +1 more source
Asteroid 2014 OL339: yet another Earth quasi-satellite
, 2014 Our planet has one permanently bound satellite -the Moon-, a likely large number of mini-moons or transient irregular natural satellites, and three temporary natural retrograde satellites or quasi-satellites. These quasi-moons -(164207) 2004 GU9, (277810)
Marcos, C. de la Fuente +1 more
core +1 more source
Noble gases and nitrogen in material from asteroid Bennu
Meteoritics &Planetary Science, EarlyView.Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty +7 more
wiley +1 more source
Formation and Evolution of Binary Asteroids
, 2015 Satellites of asteroids have been discovered in nearly every known small body population, and a remarkable aspect of the known satellites is the diversity of their properties.
Jacobson, Seth A., Walsh, Kevin J.
core +1 more source