Results 11 to 20 of about 1,458 (122)

The Maribo CM2 meteorite fall - survival of weak material at high entry speed

, 2019
High entry speed (> 25 km/s) and low density (< 2500 kg/m3) are two factors that lower the chance of a meteoroid to drop meteorites. The 26 g carbonaceous (CM2) meteorite Maribo recovered in Denmark in 2009 was delivered by a superbolide observed by ...
Borovicka, Jiri, Popova, Olga, Spurny, Pavel   +2 more
core   +1 more source

The local dust foregrounds in the microwave sky: I. Thermal emission spectra

, 2009
Analyses of the cosmic microwave background (CMB) radiation maps made by the Wilkinson Microwave Anisotropy Probe (WMAP) have revealed anomalies not predicted by the standard inflationary cosmology.
Dikarev, V., Krivov, A., Krueger, H., Preuss, O., Solanki, S.   +4 more
core   +1 more source

Microspherules Formed by Lightning Strikes

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source

Sedimentology of silica granules and haematite in the 3.47 Ga Antarctic Creek Member, Mount Ada Basalt, Western Australia

Sedimentology, EarlyView.
ABSTRACT The Paleoarchean Antarctic Creek Member of the Mount Ada Basalt, Eastern Pilbara Terrane, Western Australia, includes beds of jasper and white chert composed of sand‐sized silica granules that often contain or are mixed with silt‐sized particles of haematite.
Donald R. Lowe, Gary R. Byerly
wiley   +1 more source

A Comparison of Geminid Models with the PSP/WISPR-observed Phaethon Dust Trail

The Astrophysical Journal
White-light observations from the Wide-Field Imager for Parker Solar Probe (WISPR) instrument on NASA’s Parker Solar Probe recently revealed the presence of a narrow, dense dust trail close to the orbit of asteroid 3200 Phaethon. Although Geminid related,
Karl Battams, Galina O. Ryabova, Angel J. Gutarra-Leon, Jamey R. Szalay, Brendan M. Gallagher, Wolf Cukier   +5 more
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

How Long-lived Grains Dominate the Shape of the Zodiacal Cloud

The Planetary Science Journal
Grain–grain collisions shape the three-dimensional size and velocity distribution of the inner Zodiacal Cloud and the impact rates of dust on inner planets, yet they remain the least understood sink of zodiacal dust grains. For the first time, we combine
Petr Pokorný, Althea V. Moorhead, Marc J. Kuchner, Jamey R. Szalay, David M. Malaspina   +4 more
doaj   +1 more source

Origin and Evolution of Saturn's Ring System

, 2009
The origin and long-term evolution of Saturn's rings is still an unsolved problem in modern planetary science. In this chapter we review the current state of our knowledge on this long-standing question for the main rings (A, Cassini Division, B, C), the
A. Brahic, A. F. Cook, A. Harris, A. S. Bosh, A. Toomre, A.J. Farmer, B. J. Buratti, B.A. Smith, B.A. Smith, B.J.R. Davidsson, C. C. Porco, C. F. Gammie, C. F. McKee, C. Leyrat, C. W. Ormel, C.C. Porco, C.C. Porco, C.D. Murray, C.D. Murray, C.D. Murray, C.D. Murray, D. Koschny, D. N. C. Lin, D. Ryu, D. Spaute, D. Stöffler, D.C. Jewitt, D.D. Davis, D.J. Stevenson, D.P. Hamilton, D.P. Rubincam, E. Asphaug, E. Karkoschka, E.A. Roche, E.J. Öpik, F. Postberg, F. Poulet, F. Poulet, F. Poulet, F. Poulet, F. Poulet, F. Spahn, F. Spahn, F. Spahn, F.H. Shu, F.H. Shu, F.H. Shu, G. E. Morfill, G. W. Wetherill, G.W. Null, H. Daisaka, H. E. Mitler, H. Ji, H. Salo, H.B. Throop, H.F. Levison, H.J. Völk, I. Mosqueira, I. Mosqueira, I. Pater de, I. Pater de, I. Pater de, I.I. Shevchenko, J. A. Burns, J. A. Wood, J. B. Pollack, J. B. Pollack, J. B. Pollack, J. B. Pollack, J. B. Pollack, J. B. Pollack, J. Bauer, J. Dohnanyi, J. E. Colwell, J. E. Colwell, J. E. Colwell, J. F. Hawley, J. F. Vedder, J. Horner, J. I. Lunine, J. M. Stone, J. N. Cuzzi, J. N. Cuzzi, J. N. Cuzzi, J. N. Cuzzi, J. N. Cuzzi, J. N. Cuzzi, J. Schmidt, J.B. Holberg, J.E. Colwell, J.E. Colwell, J.F. Cooper, J.H. Cuzzi, J.J Lissauer, J.J. Lissauer, J.J. Lissauer, J.J. Lissauer, J.J. Lissauer, J.J. Lissauer, J.M. Barbara, J.N. Cuzzi, K. H. Baines, K. Nakazawa, K. Ohtsuki, K. Ohtsuki, K. Tsiganis, K. Zahnle, L. Dones, L. Dones, L. J. Horn, L. R. Doyle, L.S. Chambers, L.W. Esposito, L.W. Esposito, L.W. Esposito, L.W. Esposito, L.W. Esposito, L.W. Esposito, M. A. Barucci, M. Landgraf, M. R. Showalter, M. Sremčević, M. Sremčević, M. Sremčević, M.C. Lewis, M.J. Duncan, M.M. Hedman, M.M. Hedman, M.M. Hedman, M.M. Hedman, M.R. Showalter, M.R. Showalter, M.R. Showalter, M.R. Showalter, M.S. Tiscareno, M.S. Tiscareno, M.S. Tiscareno, N. Albers, N. Altobelli, N. Borderies, N.V. Brilliantov, O. C. Winter, O. Hubickyj, P. Bodenheimer, P. Goldreich, P. Goldreich, P. Goldreich, P. Goldreich, P. Goldreich, P. O. Lagage, P. R. Estrada, P. R. Estrada, P. R. Estrada, P. S. Goldreich, P.D. Nicholson, P.D. Nicholson, P.D. Nicholson, R. H. Durisen, R. H. Durisen, R. H. Durisen, R. H. Durisen, R. H. Durisen, R. H. Durisen, R. Karjalainen, R. Karjalainen, R. M. Canup, R. Smoluchowski, R. Smoluchowski, R. Srama, R.G. French, R.M. Canup, R.M. Canup, R.M. Canup, S. A. Balbus, S. Chandrasekhar, S. Charnoz, S. Charnoz, S. Charnoz, S. Charnoz, S. Charnoz, S. J. Weidenschilling, S. Kempf, S. M. Giuliatti Winter, S. M. Giuliatti Winter, S. M. Giuliatti Winter, S. Renner, S.F. Dermott, S.J. Weidenschilling, S.W. Kieffer, S.W. Kieffer, T. G. Northrop, T. Gehrels, T. Pöschel, T. Takeuchi, V. Ossenkopf, W. Benz, W. Cabot, W.-H. Ip, W.-H. Ip, W.H. Ip, Y. Nakagawa, Y. Shen   +201 more
core   +1 more source

Modeling Upper Ocean Ecosystem Dynamics in Response to Interannual Sea‐Ice Variability in the Western Antarctic Peninsula

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract In the Western Antarctic Peninsula (WAP), marine plankton dynamics are tightly linked to the interannual variability in environmental conditions, including phenological shifts in sea‐ice seasonality. To explore these linkages, we use a 1‐dimensional vertical ocean‐ice‐ecosystem model (KPP‐Eco‐Ice, or KEI) that simulates physical and ecosystem ...
Catherine R. Czajka, Jessica S. Turner, Sharon Stammerjohn, Heather H. Kim, Oscar Schofield, Benjamin T. Saenz, Scott C. Doney   +6 more
wiley   +1 more source

First LiDAR Observation of Quasi‐Periodic Structures in Mid‐Latitude E‐Region Meteoric Ca+ Layers

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We report the first LiDAR observations of continuous quasi‐periodic (QP) metal density structures in mid‐latitude E‐region meteoric Ca+ layers using an all‐solid‐state LiDAR system in Beijing (40.4°N, 116.0°E). These QP Ca+ structures, with periods of 2–30 min and vertical wavelengths of ∼2–15 km, were primarily observed above 100 km.
Jixin Guo, Tao Yu, Lifang Du, Jin Wang, Xiangxiang Yan, Yan Yu, Wenyu Hao, Yifan Qi, Haoran Zheng, Guotao Yang   +9 more
wiley   +1 more source