Results 121 to 130 of about 10,691 (260)
Meteoroid velocity distribution derived from head echo data collected at Arecibo during regular world day observations [PDF]
Atmospheric Chemistry and Physics, 2004 We report the observation and analysis of ionization flashes associated with the decay of meteoroids (so-called head echos) detected by the Arecibo 430 MHz radar during regular ionospheric observations in the spring and autumn equinoxes.
M. P. Sulzer
doaj
Comparison of cubesat and microsat catastrophic failures in function of radiation and debris impact risk. [PDF]
Sci Rep, 2023 Lopez-Calle I, Franco AI.
europepmc +1 more source
Effects of meteoroids and space debris on the particulate environment for space station [PDF]
A large orbiting platform such as Space Station will be subjected to numerous impacts by meteoroids and space debris fragments. These hypervelocity impacts will produce clouds of ejected structural material in the vicinity of the Station. The development
Seebaugh, W. R.
core +1 more source
Ryugu Reference Project: Recommendations from the Measurement Definition Team
Meteoritics &Planetary Science, EarlyView.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
Geophysical investigation of the Santa Marta impact structure—Piauí State, Brazil
Meteoritics &Planetary Science, EarlyView.Abstract The Santa Marta impact structure in northeastern Brazil, recognized as a partially preserved complex crater, was investigated through an integrated geophysical study employing magnetotelluric (MT) and gravity methods. Our research provides constraints on the crater's subsurface architecture.
Elienara Vasconcelos +5 more
wiley +1 more source
Space vehicle propulsion systems: Environmental space hazards [PDF]
The hazards that exist in geolunar space which may degrade, disrupt, or terminate the performance of space-based LOX/LH2 rocket engines are evaluated.
Bahr, G. K., Disimile, P. J.
core +1 more source
The Meteoritical Bulletin, No. 114
Meteoritics &Planetary Science, EarlyView.Abstract Meteoritical Bulletin 114 contains the 1944 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2025. It includes 15 observed falls, 1336 ordinary chondrites, 213 HED, 106 carbonaceous chondrites (including 8 ungrouped), 86 lunar meteorites, 39 ureilites, 28 iron meteorites (2 ungrouped), 24 martian meteorites, 24 ...
Jérôme Gattacceca +12 more
wiley +1 more source
Noûs, EarlyView.ABSTRACT Philosophers often think agency is essentially connected with rationality, intention, or control. However, Minimalists argue that agency is just the power to cause a change; acids and boulders are agents too. Many philosophers treat Minimalism as a wild outlier, assuming its falsity without argument.
William Hornett
wiley +1 more source
Large craters on the meteoroid and space debris impact experiment [PDF]
Examination of 29.37 sq m of thick aluminum plates from the LDEF, which were exposed to the meteoroid and man-made orbital debris environments for 5.8 years, revealed 606 craters that were 0.5 mm in diameter or larger.
Humes, Donald H.
core +1 more source
De‐Coupled Water and Nitrogen Translocation From Subsoil to Canopy of Temperate Forest Trees
Plant, Cell &Environment, EarlyView.ABSTRACT Water and nitrogen (N) transport from soil to canopy play a central role in tree functioning, yet direct evidence for their timing and coupling in mature forests remains scarce. We report results from a paired dual‐isotope (2H, 15N) tracer experiment in a temperate forest, comparing water and nitrate uptake patterns across tree species ...
Klara Mrak +7 more
wiley +1 more source