Results 31 to 40 of about 2,778 (224)
Efficient and inefficient hydrodynamic escape of exo-satellite atmospheres driven by irradiation from their young giant planets [PDF]
Monthly notices of the Royal Astronomical SocietyThe bolometric radiation from a central body is potentially a powerful driver of atmospheric escape from planets or satellites. When heated above their equilibrium temperatures those satellites, due to their low surface gravity, are be prone to ...
M. Schulik +4 more
semanticscholar +1 more source
Geoarchaeology, 2023 On October 4, 1957, Homo sapiens crossed a new threshold of technological innovation after constructing an artifact capable of entering Low Earth Orbit and effectively paving the way for a future of space exploration.
J. Holcomb +5 more
semanticscholar +1 more source
Free-floating Planets Produced by Planet–Planet Scatterings: Ejection Velocity and Survival Rate of Their Moons [PDF]
Astrophysical JournalThe discovery of numerous free-floating planets (FFPs) has intensified interest in their origins and dynamical histories. A leading formation mechanism is planet–planet scatterings in unstable multiplanetary systems, which can naturally lead to planetary
Xiumin Huang, Dong Lai
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Formation of exoplanetary satellites by pull-down capture
Science Advances, 2019 We show that large moons around extrasolar planets can be captured during the rapid growth of a gas giant envelope. The large size and wide orbit of the recently announced exomoon candidate Kepler-1625b-i are hard to explain within traditional theories ...
B. Hansen
semanticscholar +1 more source
Formation of Regular Satellites from Ancient Massive Rings in the Solar System [PDF]
Science, 2012 An analytical model suggests that the terrestrial and giant planets in the solar system formed moons through a similar process. When a planetary tidal disk—like Saturn’s rings—spreads beyond the Roche radius (inside which planetary tides prevent ...
A. Crida, S. Charnoz, S. Charnoz
semanticscholar +1 more source
Delivery of Dust Particles from Protoplanetary Disks onto Circumplanetary Disks of Giant Planets [PDF]
Astrophysical JournalThe principal regular satellites of gas giants are thought to be formed by the accumulation of solid materials in circumplanetary disks (CPDs). While there has been significant progress in the study of satellite formation in CPDs, details of the supply ...
Natsuho Maeda +5 more
semanticscholar +1 more source
FEBS Open Bio, EarlyView.Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao +3 more
wiley +1 more source
FEBS Open Bio, EarlyView.UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová +2 more
wiley +1 more source
FEBS Open Bio, EarlyView.The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley +1 more source
Irregular Satellites of the Planets: Products of Capture in the Early Solar System [PDF]
, 2007 All four giant planets in the Solar system possess irregular satellites, characterized by large, highly eccentric and/or inclined orbits that are distinct from the nearly circular, uninclined orbits of the regular satellites.
D. Jewitt, N. Haghighipour
semanticscholar +1 more source