Results 71 to 80 of about 6,060 (231)
Europa's Neutral Sodium Exosphere Is Quasi‐Stable Over Decades
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract Europa's sodium cloud is thought to be modified by its orbital longitude and by its plasma environment, which modulates with Jovian magnetic geometry. To explore and quantify sodium cloud variability, seven sets of Keck I/HIRES measurements are compared providing comprehensive coverage of orbital and magnetic geometry.
Emma L. Lovett +4 more
wiley +1 more source
“The most philosophically of all the sciences”: Karl Popper and physical cosmology [PDF]
, 2012 Problems of scientific cosmology only rarely occur in the works of Karl Popper. Nevertheless, it was a subject that interested him and which he occasionally commented on.
Kragh, Helge
core
A Companion to Astronomy and Astrophysics: Chronology and Glossary with Data Tables
, 2006 Astronomy and Astrophysics is a comprehensive, fundamental, up-to-date reference book. It is filled with vital information and basic facts for amateur astronomers and professional astrophysicists, and for anyone interested in the Universe, from the Earth
Lang, Kenneth R
core +1 more source
AMON Multimessenger Alerts: Past and Future
Galaxies, 2019 The Astrophysical Multimessenger Observatory Network (AMON) was founded to tie the world’s high-energy and multimessenger observatories into a single network, with the purpose to enable the discovering of multimessenger sources, to exploit these ...
Hugo Alberto Ayala Solares
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract A spectrally resolved observational methodology is introduced to estimate mesoscale momentum flux frequency spectra in the mesosphere and lower thermosphere (MLT). The method is applied to four‐dimensional wind fields reconstructed with the physics‐informed neural network approach called the Hydrodynamic Point‐wise Environment Reconstructor ...
G. Mitra +5 more
wiley +1 more source
When is a prediction anthropic? Fred Hoyle and the 7.65 MeV carbon resonance [PDF]
, 2010 The case of Fred Hoyle’s prediction of a resonance state in carbon-12, unknown in 1953 when it was predicted, is often mentioned as an example of anthropic prediction.
Kragh, Helge
core
The cosmic microwave background bispectrum from the non-linear evolution of the cosmological perturbations [PDF]
, 2010 International audienceThis article presents the first computation of the complete bispectrum of the cosmic microwave background temperature anisotropies arising from the evolution of all cosmic fluids up to second order, including neutrinos ...
Bernardeau, F. +8 more
core +1 more source
Characterization of High‐Frequency GNSS Total Electron Content Variations
Journal of Geophysical Research: Space Physics, Volume 131, Issue 10, October 2026.Abstract Global Navigation Satellite System (GNSS)–derived Total Electron Content (TEC) is widely used to investigate ionospheric variability, but has primarily been applied to low‐frequency fluctuations. Here we present a long‐term statistical characterization of high‐frequency (30–500 mHz) TEC variations using multi‐constellation GNSS data from 11 ...
J. Pérez‐Coll Jiménez +3 more
wiley +1 more source
An invitation to astrophysics [PDF]
, 2006 This unique book provides a clear and lucid description of several aspects of astrophysics and cosmology in a language understandable to a physicist or beginner in astrophysics.
Thanu Padmanabhan, Padmanabhan, Thanu
core +1 more source