Results 91 to 100 of about 4,564 (304)
Global Policy, EarlyView.ABSTRACT This article explores the current controversies surrounding the European Ariane launcher and its implications for the future of European space governance. The Ariane program, historically a symbol of European technopolitical integration, faces mounting challenges due to delays, rising costs and increasing competition from private actors like ...
Nina Klimburg‐Witjes, Joseph Popper
wiley +1 more source
The NASA Lunar Impact Monitoring Program
, 2008 We have a fruitful observing program underway which has significantly increased the number of lunar impacts observed. We have done initial test shots at the Ames Vertical Gun Range obtained preliminary luminous efficiency values.
Suggs, Rob
core +1 more source
Punchline with(out) purpose: Integrating research on instructional humour and seductive details
British Journal of Educational Psychology, EarlyView.Abstract Introduction We integrated research on instructional humour and seductive details to investigate when affiliative course‐related humour is effective or rather ineffective for learning. We assumed that instructional humour without a cognitive function (irrelevant humour) would have detrimental effects on learning performance resembling the ...
Lisa Bender +2 more
wiley +1 more source
Lunar Impact Detections During the 2010 Geminid Meteor Shower
, 2011 Lunar video observations are routinely conducted at the NASA Marshall Space Flight Center in Huntsville Alabama for the detection of meteoroid impacts. Over 240 impacts have been detected since the start of the observing program initiated approximately 5
Moser, Danielle +3 more
core +1 more source
A record of the extraterrestrial 3He flux through the Late Cretaceous
, 2012 Late Cretaceous (100-73Ma) pelagic limestones were measured for helium concentration and isotopic composition to characterize the interplanetary dust flux using 3He as a tracer.
K. A. Farley +5 more
core +1 more source
The Population of Young Craters on the Moon: New Catalog and Spatial and Temporal Analysis
The Planetary Science JournalWe present a new catalog of the Moon’s rayed and rocky craters from 5 to 130 km in diameter. Using data from the Lunar Reconnaissance Orbiter and the JAXA Kaguya/Selene missions, we identify 571 unique craters with albedo, maturity, and/or thermophysical
Rebecca R. Ghent +2 more
doaj +1 more source
Advancing conservation breeding programs for marine invertebrates
Conservation Biology, EarlyView.Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
wiley +1 more source
He isotopes in Late Cretaceous sediments
, 2012 Late Cretaceous (100-73 Ma) pelagic limestones were measured for helium concentration and isotopic composition to characterize the interplanetary dust flux using 3He as a tracer.
Alessandro Montanari (2840717) +5 more
core +1 more source
The South Pole‐Aitken Basin: Constraints on Impact Excavation, Melt, and Ejecta
Geophysical Research LettersThe formation and evolution of the South Pole‐Aitken (SPA) basin is critical to relating large impact basin formation and modification to lunar geophysical evolution.
R. I. Citron +4 more
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Impact-driven Deposition of Metallic Titanium on the Moon
The Planetary Science JournalImpact-induced high temperatures are a key driver of titanium (Ti) redistribution in Ti-bearing phases, which is crucial for understanding element cycling on the Moon.
Xiaojia Zeng, Xiongyao Li
doaj +1 more source