Results 51 to 60 of about 291,896 (358)
Pre-discovery Activity of New Interstellar Comet 2I/Borisov beyond 5 au [PDF]
Astronomical Journal, 2019 Comet 2I/Borisov, the first unambiguous interstellar comet ever found, was discovered in 2019 August at ∼3 au from the Sun on its inbound leg. No pre-discovery detection beyond 3 au has yet been reported, mostly due to the comet’s proximity to the Sun as
Q. Ye 叶 +17 more
semanticscholar +1 more source
The Formation of a Rubble Pile Asteroid: Insights from the Asteroid Ryugu
Universe, 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
Prebiotic chemicals—amino acid and phosphorus—in the coma of comet 67P/Churyumov-Gerasimenko
Science Advances, 2016 The detection of glycine and phosphorus in the coma of 67P shows that comets contain all ingredients to help spark life on Earth. The importance of comets for the origin of life on Earth has been advocated for many decades.
K. Altwegg +31 more
semanticscholar +1 more source
Volatile Species in Comet 67P/Churyumov-Gerasimenko: Investigating the Link from the ISM to the Terrestrial Planets [PDF]
ACS Earth and Space Chemistry, 2019 Comets contain abundant amounts of organic and inorganic species. Many of the volatile molecules in comets have also been observed in the interstellar medium and some of them even with similar relative abundances, indicating formation under similar ...
M. Rubin +4 more
semanticscholar +1 more source
The European Space Agency’s Comet Interceptor lies in wait
Nature Communications, 2019 The European Space Agency (ESA) recently selected Comet Interceptor as its first ‘fast’ (F-class) mission. It will be developed rapidly to share a launch with another mission and is unique, as it will wait in space for a yet-to-be-discovered comet.
C. Snodgrass, G. Jones
semanticscholar +1 more source
Effects of the Planar Galactic Tides and Stellar Mass on Comet Cloud Dynamics
, 2009 We report the first results of a research program to explore the sensitivity of the orbits of Oort cloud comets to changes in the strength of the Galactic tides in the plane of the disk and also to changes in the mass of the host star.
Gonzalez, Guillermo +2 more
core +1 more source
How satellite InSAR has grown from opportunistic science to routine monitoring over the last decade
Nature Communications, 2020 In the past decade, a new generation of radar satellites have revolutionised our ability to measure Earth’s surface deformation globally and with unprecedented resolution.
Juliet Biggs, Tim J. Wright
doaj +1 more source
Geochemistry, 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
Evaluation of Genotoxic and Cytotoxic Effects of Gluten in Male Albino Mice
Bioscience Journal, 2023 Gluten is a protein commonly found in daily diets in the form of wheat, barley, rye, and other grains. It serves as the structural component in flour, providing the binding qualities that maintain the shape and texture of food items.
Nagla Z. El-Alfy +3 more
doaj +1 more source
The Great Comet and Schmidt's Comet [PDF]
Nature, 1882 THERE can be no doubt of the elongation of the nucleus of the Great Comet in the direction of the axis of the tail, in which direction it is three times as long as in a direction at right angles thereto.
openaire +2 more sources