Results 41 to 50 of about 2,111,313 (164)

Web interface for lunar laser ranging observations

, 2010
International audienceWe report the current development of a web interface for the preparation and the validation of Lunar Laser Ranging (LLR) observations.
Barache, Christophe, Bouquillon, Sébastien, Carlucci, Teddy, Deleflie, Florent   +3 more
core   +4 more sources

The Lingering Anomalous Secular Increase of the Eccentricity of the Orbit of the Moon: Further Attempts of Explanations of Cosmological Origin

Galaxies, 2014
New analyses of extended data records collected with the Lunar Laser Ranging (LLR) technique performed with improved tidal models were not able to resolve the issue of the anomalous rate e ˙ of the eccentricity e of the orbit of the Moon, which is ...
Lorenzo Iorio
doaj   +1 more source

Effects of 14 days of head‐down bed rest with or without exercise, and subsequent recovery on bone turnover, density and structure in older adults

Experimental Physiology, EarlyView.
Abstract Bed rest accelerates bone loss and may exacerbate skeletal fragility. This study examined the effects of 14 days of head‐down tilt bed rest (HDBR) with or without exercise, and subsequent recovery, on bone turnover, density and structure in older adults. Twenty‐two healthy older adults (55–65 years) completed the HDBR protocol.
Guy Hajj‐Boutros, Andréa Faust, Carmelo Mastrandrea, Vita Sonjak, Dounia Rouabhia, Gustavo Duque, Richard Kremer, Stéphanie Chevalier, Julie Lacombe, Mathieu Ferron, Tyler A. Churchward‐Venne, José A. Morais   +11 more
wiley   +1 more source

Extending Science from Lunar Laser Ranging

, 2021
International audienceThe Lunar Laser Ranging (LLR) experiment has accumulated 50 years of range data of improving accuracy from ground stations to the laser retroreflector arrays (LRAs) on the lunar surface.
Viswanathan, Vishnu, Courde, Clément, Chabé, Julien, Schreiber, Ulrich, Müller, Jürgen, Torre, Jean-Marie, Dequal, Daniele, Kopeikin, Sergei, Mazarico, Erwan, Wu, Chensheng, Ermakov, Anton I., Bourgoin, Adrien, Eubanks, Thomas M., Biskupek, Liliane, Merkowitz, Stephen, Williams, James G., Currie, Douglas G., Rambaux, Nicolas, Dell'Agnello, Simone, Turyshev, Slava G., Fienga, Agnès   +20 more
core   +1 more source

MoonLIGHT and MPAc: The European Space Agency’s Next-Generation Lunar Laser Retroreflector for NASA’s CLPS/PRISM1A (CP-11) Mission

Remote Sensing
Since 1969, 55 years ago, Lunar Laser Ranging (LLR) has provided accurate and precise (down to ~1 cm RMS) measurements of the Moon’s orbit thanks to the Apollo and Lunokhod Cube Corner Retroreflector (CCR) Laser Retroreflector Arrays (LRAs) deployed on ...
Marco Muccino, Michele Montanari, Rudi Lauretani, Alejandro Remujo Castro, Laura Rubino, Ubaldo Denni, Raffaele Rodriquez, Lorenzo Salvatori, Mattia Tibuzzi, Luciana Filomena, Lorenza Mauro, Douglas Currie, Giada Bargiacchi, Emmanuele Battista, Salvatore Capozziello, Mauro Maiello, Luca Porcelli, Giovanni Delle Monache, Simone Dell’Agnello   +18 more
doaj   +1 more source

The environment dependent dilaton in the laboratory and the solar system

European Physical Journal C: Particles and Fields, 2022
We consider the environment-dependent dilaton in the laboratory and the solar system and derive approximate analytical solutions to the field theory equations of motion in the presence of a one or two mirror system or a sphere.
Philippe Brax, Hauke Fischer, Christian Käding, Mario Pitschmann   +3 more
doaj   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
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, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

The optical challenge of two-colour lunar laser ranging at MéO station

Results in Optics
This article describes recent optical developments for the Nd:YAG laser at the MéO station, which regularly carries out Lunar/Satellite Laser Ranging (LLR/SLR) observations for fundamental physics and space geodesy.
G. Martinot-Lagarde, H. Mariey, N. Maurice, J. Scariot, H. Viot   +4 more
doaj   +1 more source

Impact Craters Reveal a Deeper Rock‐Poor Regolith in the Lunar Highlands

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract The only measurements of the highlands regolith occurred at the Apollo 14 and 16 landing sites, finding 10–15 m thick regolith; however, we show that the Apollo landing sites are anomalous due to their proximity to rare, highlands rocky craters and because they landed atop basin ejecta. Through observations of rocky crater populations, we show
M. A. Chertok, E. S. Costello, P. G. Lucey, S. M. Ireland, C. M. Elder   +4 more
wiley   +1 more source

Improved BBN constraints on the variation of the gravitational constant

European Physical Journal C: Particles and Fields, 2020
Big Bang Nucleosynthesis (BBN) is very sensitive to the cosmological expansion rate. If the gravitational constant G took a different value during the nucleosynthesis epoch than today, the primordial abundances of light elements would be affected.
James Alvey, Nashwan Sabti, Miguel Escudero, Malcolm Fairbairn   +3 more
doaj   +1 more source