Results 41 to 50 of about 2,935 (226)
A Study of Babylonian Goal-Year Planetary Astronomy [PDF]
, 2009 Throughout the Late Babylonian Period, Mesopotamian astronomers made nightly observations of the planets, Moon and stars. Based on these observations, they developed several different techniques for predicting future astronomical events.
GRAY, JENNIFER,MARY,KNIGHTLEY +1 more
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Asymptotic analysis of displaced lunar orbits
, 2009 The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Simo, J. +3 more
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Advanced Science, EarlyView.A self‐evolving Pd/Ov‐FeTiO3 photothermal catalyst, inspired by lunar soil, enables efficient extraterrestrial CO2 conversion. The formation of transient active interfaces and oxygen vacancies extends light absorption to the infrared range and optimizes electron transfer.
Yahang Wang +11 more
wiley +1 more source
Estudios Atacameños, 2015 Se presentan los aspectos sociales vinculados al concepto de frontera, el ushnu y la observación lunar en el sitio inca de La Ciudacita, provincia de Tucumán, noroeste de Argentina.
Ricardo Fernando Moyano Vasconcellos +1 more
doaj +8 more sources
On Astronomical Materials in Buddhist Scriptures
ReligionsThere are many foreign astronomical materials that were preserved in the Chinese translation of Buddhist canons. From the content, these astronomical materials include cosmology theories, lunar mansion systems, calendrical data, etc.
Weixing Niu
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Etudes Epistémè, 2005 The Man in the Moone by Francis Godwin and A Discovery of a New World in the Moone by John Wilkins both appeared in England in 1638. The former offers a fanciful tale of the lunar voyage of Domingo Gonsales; the latter systematically discusses the ...
Frédérique Aït-Touati
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Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Navigating to the Moon along low-energy transfers
, 2012 This paper presents a navigation strategy to fly to the Moon along a Weak Stability Boundary transfer trajectory. A particular strategy is devised to ensure capture into an uncontrolled relatively stable orbit at the Moon.
Vasile, M. +2 more
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A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions
X-Ray Spectrometry, EarlyView.ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri +14 more
wiley +1 more source
First visibility of the lunar crescent and other problems in historical astronomy. [PDF]
, 1998 SIGLEAvailable from British Library Document Supply Centre-DSC:DXN018611 / BLDSC - British Library Document Supply CentreGBUnited ...
Fatoohi, L.J., Fatoohi, Louay J.
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