Results 41 to 50 of about 8,276 (261)

Orbits and Masses of the Small Satellites of Pluto

open access: yesThe Planetary Science Journal, 2023
We present a new orbit and mass solution for the four small satellites of Pluto: Styx, Nix, Kerberos, and Hydra. We have reanalyzed all available observations of the Pluto system obtained by the Hubble Space Telescope from 2005 to 2019 with the ACS ...
Simon B. Porter, Robin M. Canup
doaj   +1 more source

Inhalable Hsa‐miR‐30a‐3p Liposomes Attenuate Pulmonary Fibrosis

open access: yesAdvanced Science, EarlyView.
The study explores inhalable hsa‐miR‐30a‐3p‐loaded liposomes as a treatment for bleomycin‐induced pulmonary fibrosis in mice. Hsa‐miR‐30a‐3p is electroporated into liposomes and formulated into a dry powder for inhalation. Delivered via dry powder inhalation, it improves pulmonary function, promotes myofibroblast de‐differentiation by targeting CNPY2 ...
Shuo Liu   +14 more
wiley   +1 more source

A recent origin for Saturn's rings from the collisional disruption of an icy moon [PDF]

open access: yes, 2017
The disruption of an icy moon in a collision with an interloping comet a few hundred million years ago is a simple way to create Saturn's rings. A ring parent moon with a mass comparable to Mimas could be trapped in mean motion resonance with Enceladus and Dione in an orbit near the current outer edge of the rings just beyond the Roche zone.
arxiv   +1 more source

The Nuclear Receptor NR1B1/RARα Arrests the Differentiation of Anti‐Tumor Effector Cytotoxic T Cells

open access: yesAdvanced Science, EarlyView.
RARα is highly expressed by differentiated effector and exhausted T cells and exerts a negative effect on effector T cell differentiation and the associated trafficking receptor switch. Upregulated RARα levels decrease the nuclear histone acetylase (HAT) activity, and this suppresses the expression of key Teff transcription factor BATF and trafficking ...
Patrick Niekamp   +5 more
wiley   +1 more source

Five decades of radioglaciology

open access: yesAnnals of Glaciology, 2020
Radar sounding is a powerful geophysical approach for characterizing the subsurface conditions of terrestrial and planetary ice masses at local to global scales.
Dustin M. Schroeder   +9 more
doaj   +1 more source

Enceladus as a Potential Niche for Methanogens and Estimation of Its Biomass

open access: yesLife, 2021
Enceladus is a potential target for future astrobiological missions. NASA’s Cassini spacecraft demonstrated that the Saturnian moon harbors a salty ocean beneath its icy crust and the existence and analysis of the plume suggest water–rock reactions ...
Laura I. Tenelanda-Osorio   +3 more
doaj   +1 more source

DNA Origami‐Cyanine Nanocomplex for Precision Imaging of KRAS‐Mutant Pancreatic Cancer Cells

open access: yesAdvanced Science, EarlyView.
DNA origami‐cyanine (Do‐Cy) nanocomplexes are synthesized to selectively image KRAS‐mutant pancreatic cancer cells in the highly desmoplastic tumors. This study shows that the Do‐Cy nanocomplexes are preferentially internalized by cancer cells over other stroma cells via KRAS‐dependent macropinocytosis.
Hye‐ran Moon   +7 more
wiley   +1 more source

Measuring Ganymede’s Librations with Laser Altimetry

open access: yesGeosciences, 2019
Jupiter’s moon Ganymede might be in possession of a subsurface ocean located between two ice layers. However, from Galileo data it is not possible to unambiguously infer the thickness and densities of the individual layers.
Gregor Steinbrügge   +4 more
doaj   +1 more source

Longitudinal Variation of H2O Ice Absorption on Miranda

open access: yesThe Planetary Science Journal, 2022
Many tidally locked icy satellites in the outer solar system show leading/trailing hemispherical asymmetries in the strength of near-infrared (NIR) H _2 O ice absorption bands, in which the absorption bands are stronger on the leading hemisphere. This is
Riley A. DeColibus   +2 more
doaj   +1 more source

Compliant Robotics in Space: A Prospective Review of Soft and Deformable Systems for Space Missions

open access: yesAdvanced Intelligent Systems, EarlyView.
Compliant robots are increasingly becoming integral to space exploration due to their adaptability, flexibility, and lightweight design. This article reviews categories such as soft, reconfigurable, and hyper‐redundant robots and their evolving role in enhancing space missions.
Hamed Rahimi Nohooji, Holger Voos
wiley   +1 more source

Home - About - Disclaimer - Privacy