Results 71 to 80 of about 14,650 (219)

Evidence of an Extended Alfvén Wing System at Enceladus: Cassini's Multi‐Instrument Observations

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract We report in situ evidence for Enceladus' Alfvén wing system and its coupling with Saturn's ionosphere, based on multi‐instrument observations from the Cassini spacecraft. Analysis of 36 events, including 13 from non‐flyby paths, confirms the existence of a Main Alfvén Wing (MAW) current system generated at Enceladus, and associated Reflected ...
L. Z. Hadid   +28 more
wiley   +1 more source

Dust Grain Orbital Behavior Around Ceres

open access: yes, 2003
Many asteroids show indications they have undergone impacts with meteoroid particles having radii between 0.01 m and 1 m. During such impacts, small dust grains will be ejected at the impact site.
Burns   +18 more
core   +1 more source

High‐Latitude Electrodynamics and Thermospheric Density Variations During the 2024 Gannon Storm

open access: yesSpace Weather, Volume 24, Issue 2, February 2026.
Abstract This study investigates high‐latitude electrodynamics and thermospheric density variations during the 2024 Gannon's storm. First, the auroral precipitation module of Auroral Spectra and High‐Latitude Electric field variabilitY, ASHLEY‐A, is improved to more accurately capture the location of auroral precipitation observed during this ...
Qingyu Zhu   +6 more
wiley   +1 more source

Sublimation of Interplanetary Dust [PDF]

open access: yesInternational Astronomical Union Colloquium, 1996
AbstractThree topics are briefly reviewed to examine evidence for the nature of dust grains and grain alteration by physical processes related to mainly sublimation. Namely, (1) a change of dust flux detected byin situdust measurements beyond ~ 2 AU from the Sun suggests a disappearance of volatile ices due to sublimation below this distance, (2) an ...
openaire   +1 more source

Sampling the volcanic plumes at Io: Impact speeds and shock conditions

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 2, Page 241-271, February 2026.
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell   +2 more
wiley   +1 more source

Diverse Dust Populations in the Near-Sun Environment Characterized by PSP/ISʘIS

open access: yesThe Astrophysical Journal
The Integrated Science Investigation of the Sun energetic particle instrument suite on the Parker Solar Probe is dedicated to measuring energetic ions and electrons in the near-Sun environment.
M. M. Shen   +11 more
doaj   +1 more source

Detection of Biological Bricks in Space. The Case of Adenine in Silica Aerogel

open access: yesLife, 2019
Space missions using probes to return dust samples are becoming more frequent. Dust collectors made of silica aerogel blocks are used to trap and bring back extraterrestrial particles for analysis.
Aline Percot   +7 more
doaj   +1 more source

Measurements of interplanetary dust particle flux from Explorer XVI CdS and wire grid dust particle detectors [PDF]

open access: yes
Interplanetary dust particle flux measured by Explorer XVI cadmium sulfide and wire grid dust particle ...
Secretan, L.
core   +1 more source

Dusty Planetary Systems

open access: yes, 2012
Extensive photometric stellar surveys show that many main sequence stars show emission at infrared and longer wavelengths that is in excess of the stellar photosphere; this emission is thought to arise from circumstellar dust.
A Moro-Martín   +106 more
core   +1 more source

Cosmic dust [PDF]

open access: yes
Dust is a ubiquitous component of our galaxy and the solar system. The collection and analysis of extraterrestrial dust particles is important to exobiology because it provides information about the sources of biogenically significant elements and ...
Brownlee, Donald E., Sandford, Scott A.
core   +1 more source

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