Results 11 to 20 of about 1,555,580 (293)
The Planetary Science Journal, 2023 The complex dynamics of the Venus atmosphere produces a periodic mass redistribution pattern that creates a time-variable modulation of the gravity field of Venus.
Gael Cascioli +6 more
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Primo Levi and the Terrestrial Condition
Enthymema, 2023 In his stories, Primo Levi presents contrasting planetary visions of Earth: one depicting it as an expanding technosphere made of entangled beings, and the other as a world of disparities impacted by the agency of a mutated humanity.
Emiliano Guaraldo
doaj +1 more source
Survey on Unmanned Aerial Vehicle for Mars Exploration: Deployment Use Case
Drones, 2021 In recent years, the area of Unmanned Aerial Vehicles (UAVs) has seen rapid growth. There has been a trend to build and produce UAVs that can carry out planetary exploration throughout the past decade.
Manjula Sharma +4 more
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Potassium isotope composition of Mars reveals a mechanism of planetary volatile retention
Proceedings of the National Academy of Sciences of the United States of America, 2021 Significance Using spacecraft data and elemental abundances derived from martian meteorites, earlier studies set a paradigm of a volatile- and water-rich Mars relative to Earth. Nevertheless, inherent difficulty in determining the volatile budget of bulk
Z. Tian +9 more
semanticscholar +1 more source
Mathematics, 2022 With the development of aerospace science and technology, more and more probes are expected to be deployed around extraterrestrial planets. In this paper, some special orbits around Jupiter, Saturn, Uranus, and Neptune are discussed and analyzed.
Biao Yang +7 more
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The Planetary Science Journal, 2023 The NASA’s Double-Asteroid Redirection Test (DART) was a unique planetary defence and technology test mission, the first of its kind. The main spacecraft of the DART mission impacted the target asteroid Dimorphos, a small moon orbiting the asteroid ...
Agata Rożek +28 more
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Planetary nebulae in M33: probes of asymptotic giant branch nucleosynthesis and interstellar medium abundances★ [PDF]
, 2010 We have obtained deep optical spectrophotometry of 16 planetary nebulae in M33, mostly located in the central two kpc of the galaxy, with the Subaru and Keck telescopes.
F. Bresolin +4 more
semanticscholar +2 more sources
PLANETARY CARTOGRAPHY AND MAPPING: WHERE WE ARE TODAY, AND WHERE WE ARE HEADING FOR? [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Planetary Cartography does not only provides the basis to support planning (e.g., landing-site selection, orbital observations, traverse planning) and to facilitate mission conduct during the lifetime of a mission (e.g., observation tracking and hazard ...
A. Naß +12 more
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Probing AGB nucleosynthesis via accurate Planetary Nebula abundances [PDF]
Astronomy & Astrophysics, 2003 The elemental abundances of ten planetary nebulae, derived with high accuracy including ISO and IUE spectra, are analysed with the aid of synthetic evolutionary models for the TP-AGB phase. Model prescriptions are varied until we achieve the simultaneous reproduction of all elemental features, which allows placing important constraints on the ...
MARIGO, PAOLA +4 more
openaire +3 more sources
Masers as probes of proto-planetary discs [PDF]
Symposium - International Astronomical Union, 2004 Water maser emission from star forming regions has been monitored for several decades using the Puschino radio telescope, showing radial velocity variations consistent with material in Keplerian orbit around protostars. MERLIN and the EVN are now being used to image the 22 GHz emission on au scales and measure proper motions.
Richards, A. M. S. +7 more
openaire +2 more sources