Results 21 to 30 of about 37,854 (165)

The Formation of a Rubble Pile Asteroid: Insights from the Asteroid Ryugu

open access: yesUniverse, 2023
The Hayabusa2 mission returned primitive samples from the C-type asteroid Ryugu to Earth. The C-type asteroids hold clues to the origin of Earth’s water and the building blocks of life.
Tsutomu Ota   +8 more
doaj   +1 more source

The ethanolic extract of Gomphrena celosioides is not carcinogenic and has antigenotoxic effects and chemopreventive Properties [PDF]

open access: yesBrazilian Journal of Biology
Gomphrena celosioides, popularly known as perpétua, perpétua brava, bachelor´s button and prostate globe amarahth, is used for the treatment of urinary tract disorders, kidney stones, for skin diseases, infectious diseases, gastrointestinal and ...
M. M. M. D. Levenhagen   +7 more
doaj   +1 more source

Organic Matter in Cometary Environments

open access: yesLife, 2021
Comets contain primitive material leftover from the formation of the Solar System, making studies of their composition important for understanding the formation of volatile material in the early Solar System.
Adam J. McKay, Nathan X. Roth
doaj   +1 more source

Variability in interseismic strain accumulation rate and style along the Altyn Tagh Fault

open access: yesNature Communications
Major strike-slip faults that develop between strong and weaker regions are thought to focus along narrow shear zones at the rheological boundary. Here we present the InSAR-derived velocity field spanning almost the entire length of one such fault, the ...
Lin Shen   +3 more
doaj   +1 more source

Observation of Comets [PDF]

open access: yesNature, 1922
Dr. Crommelin in his valuable “Comet Notes,” B.A.A. Journal, March 1922, p. 198, speaking of Reid's comet (1922 a), says “the comet must have been quite well placed for Northern observers last October and November, being of the 9th magnitude.” It seems that Mr. Reid discovered the comet only a short time before it passed out of sight.
openaire   +2 more sources

An InSAR‐GNSS Velocity Field for Iran

open access: yesGeophysical Research Letters
We present average ground‐surface velocities and strain rates for the 1.7 million km2 area of Iran, from the joint inversion of InSAR‐derived displacements and GNSS data.
Andrew R. Watson   +5 more
doaj   +1 more source

Magmatic Processes in the East African Rift System: Insights From a 2015–2020 Sentinel‐1 InSAR Survey

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The East African Rift System (EARS) is composed of around 78 Holocene volcanoes, but relatively little is known about their past and present activity.
F. Albino, J. Biggs
doaj   +1 more source

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