Results 51 to 60 of about 269,247 (211)
Sources of Interplanetary Dust [PDF]
Symposium - International Astronomical Union, 1980 It is generally assumed that ejections from active cometary nuclei are the major source of replenishment of the interplanetary dust complex. Conjectures against this concept are usually based on comparison of the quantitative efficiency of the dust production by comets with the efficiency of all the dissipative processes involved.
openaire +1 more source
Meteoritics &Planetary Science, Volume 61, Issue 10, Page 2445-2465, October 2026.Abstract In the search for life on Mars, understanding the origin of preserved organics is critical. Expected sources include exogenous delivery, endogenous synthesis, and potentially life. Environmental processing by ultraviolet (UV) irradiation can alter these organics, obscuring hallmarks of their origin. To deconvolve these effects, we conducted an
D. K. Buckner +7 more
wiley +1 more source
Sublimation of Interplanetary Dust [PDF]
International 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
Charged Dust Particles in Interplanetary Space [PDF]
, 1966 Charged dust particles in interplanetary ...
Divari, N. B.
core
Study of Dust Impact Signals around Mars Using MAVEN/LPW Observations
The Astrophysical JournalThis study investigates short (millisecond) pulses detected by the Langmuir Probe and Waves instrument on board the Mars Atmosphere and Volatile Evolution spacecraft.
Samia Ijaz +3 more
doaj +1 more source
Neutral Wind Control of Jupiter's Non‐Auroral Ionosphere
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract We use JAMMIES (JAMMIES is Another Model Making Ionospheric EStimates), a new model of Jupiter's non‐auroral ionosphere, to demonstrate that neutral wind‐driven field‐aligned plasma transport can explain decades of measurements inconsistent with a solar‐dominated ionosphere. Two observations highlight these inconsistencies: a minimum in H3+ ${\
K. Mohamed +7 more
wiley +1 more source
Interplanetary dust and comet orbits [PDF]
, 1972 Several years of observational results are available from the Pioneer 8 and 9 interplanetary dust detectors, and these data were used to show dust counts graphically.
Roosen, R. G.
core
Enhanced flux of extraterrestrial 3He across the Permian–Triassic boundary
Progress in Earth and Planetary Science, 2019 The ca 252 Ma Permian–Triassic boundary (PTB) represents the most severe mass extinction event of the Phanerozoic, with the disappearance of ~ 80% of marine invertebrate species.
Tetsuji Onoue +7 more
doaj +1 more source
Ryugu’s Anhydrous Ingredients and Their Spectral Link to Primitive Dust from the Outer Solar System
The Astrophysical Journal Letters, 2023 Ryugu is a second-generation C-type asteroid formed by the reassembly of fragments of a previous larger body in the main asteroid belt. While the majority of Ryugu samples returned by Hayabusa2 are composed of a lithology dominated by aqueously altered ...
R. Brunetto +39 more
doaj +1 more source
The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review
Journal of Field Robotics, Volume 43, Issue 6, Page 4094-4115, September 2026.ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton +4 more
wiley +1 more source