Results 51 to 60 of about 8,179,561 (212)

Utopia Remembers: The Soviet Past in the Imagined Communist Future

The Russian Review, Volume 85, Issue 4, Page 478-494, October 2026.
Abstract After a twenty‐five‐year hiatus, the reappearance of utopian literature in 1957 prompted Soviet literary watchdogs to corral the subgenre into an ideologically‐acceptable mold. A key requirement was for future generations to be depicted as reverently commemorating the past.
Antony Kalashnikov
wiley   +1 more source

Ferric Chloride: The Venusian Unknown UV Absorber?

Journal of Geophysical Research: Planets, Volume 131, Issue 9, September 2026.
Abstract Near‐ultraviolet imaging of the planet Venus reveals inhomogeneous absorption features in the otherwise bright clouds. This absorption has been studied for nearly 100 years, but identification of the near‐UV absorber remains one of the largest open questions in Venusian research.
Joanna V. Egan, Wuhu Feng, Alexander D. James, James Manners, Daniel R. Marsh, Sébastien Lebonnois, Franck Lefèvre, Aurélien Stolzenbach, John M. C. Plane   +8 more
wiley   +1 more source

Space weathering of asteroids: similarities and discrepancies between Main Belt asteroids and NEOs

, 2006
In two recent papers (Marchi et al., AJ, 131, 1138 (2006) and Lazzarin et al., Ap.J. submitted) it has been shown that the mean reflection spectral slope of most Main Belt asteroids (S,C and X complexes) is positively correlated with the age and, more ...
MAGRIN, SARA, MARCHI, SIMONE, MARCHI, S, P, LAZZARIN, PAOLICCHI, PAOLO, LAZZARIN, MONICA, S., PAOLICCHI P, M, MAGRIN   +8 more
core   +1 more source

Recent arrivals to the main asteroid belt

Celestial Mechanics and Dynamical Astronomy, 2022
AbstractThe region where the main asteroid belt is now located may have started empty, to become populated early in the history of the Solar system with material scattered outward by the terrestrial planets and inward by the giant planets. These dynamical pathways toward the main belt may still be active today.
Carlos de la Fuente Marcos, Raúl de la Fuente Marcos   +1 more
openaire   +3 more sources

Emerging Diversity among the Main-belt Comets: Insights from JWST and Ground-based Observations of 457P/Lemmon-PANSTARRS

The Planetary Science Journal
We present JWST NIRSpec and NIRCam observations of 457P/Lemmon-PANSTARRS, a main-belt comet that displayed activity around its 2020 perihelion and that was observed to regain activity during its 2024 perihelion by a ground-based observing campaign.
John W. Noonan, Henry H. Hsieh, Michael S. P. Kelley, Dennis Bodewits, Jana Pittichová, Audrey Thirouin, Marco Micheli, Scott S. Sheppard, Colin O. Chandler, Theodore Kareta, Colin Snodgrass, Richard E. Cannon, Brian P. Murphy   +12 more
doaj   +1 more source

NEOMOD: A New Orbital Distribution Model for Near-Earth Objects

The Astronomical Journal, 2023
Near-Earth Objects (NEOs) are a transient population of small bodies with orbits near or in the terrestrial planet region. They represent a mid-stage in the dynamical cycle of asteroids and comets, which starts with their removal from the respective ...
David Nesvorný, Rogerio Deienno, William F. Bottke, Robert Jedicke, Shantanu Naidu, Steven R. Chesley, Paul W. Chodas, Mikael Granvik, David Vokrouhlický, Miroslav Brož, Alessandro Morbidelli, Eric Christensen, Frank C. Shelly, Bryce T. Bolin   +13 more
doaj   +1 more source

Bolide light curve systematics from 75 recovered meteorites

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2351-2392, September 2026.
Abstract How does the energy deposition profile (light curve), deceleration, and penetration depth in Earth's atmosphere depend on asteroid composition and meteorite type? Here, we present the light curve and velocity profile of 75 bolides from camera‐documented meteorite falls.
Peter Jenniskens, Stuart Pilorz, Darrel Robertson, Eric C. Stern   +3 more
wiley   +1 more source

Rotation periods for small main-belt asteroids

, 2004
The results of new CCD observations are presented as part of the campaign we are performing in Brazil to measure rotational periods for small asteroids. The observations presented here have been acquired at the Pico dos Dias Observatory between 1997 and ...
D. Lazzaro, R. Almeida, C. A. Angeli, R. Duffard   +3 more
core   +1 more source

Characterization of the Volatile Properties of 133P/Elst-Pizarro and Other Main-belt Comets with JWST and Ground-based Observations

The Planetary Science Journal
We report results from an analysis of the volatile composition and evolution of the main-belt comet (MBC) 133P/Elst–Pizarro using JWST NIRSpec and NIRCam observations and ground-based observations during its 2024 active apparition, and also assess the ...
Henry H. Hsieh, John W. Noonan, Michael S. P. Kelley, Dennis Bodewits, Jana Pittichová, Audrey Thirouin, Marco Micheli, Scott S. Sheppard, Colin O. Chandler, Theodore Kareta, Colin Snodgrass, Richard E. Cannon, Brian P. Murphy   +12 more
doaj   +1 more source

The first discovery of a shocked, metasomatised CV3 chondrule‐fragment in a (Al,Cu)‐bearing micrometeorite

Meteoritics &Planetary Science, Volume 61, Issue 9, Page 2269-2283, September 2026.
Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì, Paola Manzari, Daniela Mele, Johan Villeneuve, Tiziano Catelani, Mattew J. Genge, Luca Bindi   +6 more
wiley   +1 more source