Nachtsicht ins All mit dem bloßen Auge: Sag mir, wie weit die Sterne steh'n
Physik in unserer Zeit, EarlyView.Beim Blick in den Nachthimmel sehen wir ohne optische Hilfsmittel und abhängig von der lokalen Lichtverschmutzung viele Hundert bis maximal einige Tausend Sterne und auch einige Galaxien. Aber wie weit sind diese von uns entfernt? Und bis zu welchen maximalen Entfernungen können wir Objekte im Weltall mit dem bloßen Auge wahrnehmen?
Michael Vollmer
wiley +1 more source
Spitzer Observations of Spacecraft Target 162173 (1999 JU3)
, 2009 Near-Earth asteroid 162173 (1999 JU3) is the primary target of the Hayabusa-2 sample return mission, and a potential target of the Marco Polo sample return mission. Earth-based studies of this object are fundamental to these missions.
A. Barucci +19 more
core +2 more sources
Exogenic basalt on asteroid (101955) Bennu
, 2020 When rubble-pile asteroid 2008 TC 3 impacted Earth on 7 October 2008, the recovered rock fragments indicated that such asteroids can contain exogenic material 1 , 2 .
D. DellaGiustina +36 more
semanticscholar +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT This paper investigates the penetration performance of soil‐burrowing probes with different tip designs during shallow‐depth penetration in various media, including terrestrial soils (Hostun sand) and well‐characterized planetary soil simulants (LHS‐1 Lunar regolith simulant and MGS‐1 Martian regolith simulant).
Serena Rosa Maria Pirrone +4 more
wiley +1 more source
Carbon Speciation and Solubility in Silicate Melts
Geophysical Monograph Series, Page 179-194., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Natalia Solomatova +2 more
wiley +2 more sources
Near-Earth Asteroids as Possible Parent Bodies of Meteor Streams [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The genetic relationship of meteor streams with near-Earth asteroids (NEAs) is being actively studied. A genetic link with the asteroid is possible only for streams in which meteoroids have the geocentric speed smaller than 50 km/s, thereby meaning the ...
M.G. Sokolova, M.V. Sergienko
doaj
Erosion Rate Measurements for DART Spacecraft Ion Propulsion System
Applied Sciences, 2022 The Double Asteroid Redirection Test (DART) spacecraft was developed to provide the first measurement for orbital deflection of an asteroid upon intentional impact. The NEXT ion engine is part of the mission, on its maiden voyage.
Mark W. Crofton +3 more
doaj +1 more source
Excitation and Depletion of the Asteroid Belt in the Early Instability Scenario [PDF]
Astronomical Journal, 2018 Containing only a few percentages of the mass of the moon, the current asteroid belt is around three to four orders of magnitude smaller than its primordial mass inferred from disk models. Yet dynamical studies have shown that the asteroid belt could not
M. Clement, S. Raymond, N. Kaib
semanticscholar +1 more source
Systems Research and Behavioral Science, EarlyView.ABSTRACT The short essay makes a case that a post biological world will be a devolution. Sentience is a relational process linked with the awe and wonder we experience in relation to one another and our shared habitat. The voiceless need to be protected by extending solidarity on the basis of sentience—a normative plea, but also on the basis of ...
J. J. McIntyre‐Mills
wiley +1 more source
Dynamic autonomous intelligent control of an asteroid lander [PDF]
, 2010 One of the future flagship missions of the European Space Agency (ESA) is the asteroid sample return mission Marco-Polo. Although there have been a number of past missions to asteroids, a sample has never been successfully returned.
Bernstein D. S. +4 more
core +1 more source