Results 61 to 70 of about 1,325 (146)

Uncertainties in the Inference of Internal Structure: The Case of TRAPPIST-1 f [PDF]

open access: yesAstrophysical Journal
We use the TRAPPIST-1 system as a model observation of Earth-like planets. The densities of these planets being 1%–10% less than the Earth suggest that the outer planets may host significant hydrospheres. We explore the uncertainty in water mass fraction
D. Rice   +3 more
semanticscholar   +1 more source

Endangered White‐Clawed Crayfish (Austropotamobius pallipes) eDNA Detection Suggests Agriculture May Exert Significant Pressure on the Species

open access: yesEnvironmental DNA, Volume 7, Issue 5, September–October 2025.
Northern Ireland white‐clawed crayfish (Austropotamobius pallipes) eDNA Survey 2024 expanded the species' distribution despite demonstrating the species to be in unfavorable conservation status. ABSTRACT The white‐clawed crayfish (Austropotamobius pallipes) is IUCN Red‐Listed as globally endangered being in unfavorable (bad) status in both the UK and ...
Neil Reid   +4 more
wiley   +1 more source

The multi-planet system TOI-5624: Four transiting sub-Neptunes with an outer companion revealed by transit-timing variations [PDF]

open access: yesAstronomy & Astrophysics
Following the 2022 alert of a TESS object of interest transiting TOI-5624 (a G7,V star ∼100,pc away), a CHEOPS campaign in 2023 detected four planetary signals at P_b,≈,3.4, P_c,≈,7.9, P_d,≈,13.7, and P_e,≈,21.5 days.
A. Bonfanti   +98 more
semanticscholar   +1 more source

The “Analogs for VENus' GEologically Recent Surfaces” (AVENGERS) Initiative: Using Terrestrial Analogs to Study Recent Volcano‐Tectonic Activity on Venus and Inform the Characterization of Terrestrial Exoplanets

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Several missions to Venus have recently been selected for launch, opening a new era for the exploration of the planet. A key question these missions seek to address is whether Venus is geologically active today. Detecting active volcanism on Venus would contribute to a better understanding of volcanic and atmospheric processes on Earth.
P. D’Incecco   +55 more
wiley   +1 more source

Two temperate Earth- and Neptune-sized planets orbiting fully convective M dwarfs [PDF]

open access: yesMonthly notices of the Royal Astronomical Society
As the diversity of exoplanets continues to grow, it is important to revisit assumptions about habitability and classical HZ definitions. In this work, we introduce an expanded ’temperate’ zone, defined by instellation fluxes between 0.1 < S/S⊕ < 5 ...
M. Scott   +32 more
semanticscholar   +1 more source

Restoration using flow deflectors: a question of fine‐scale spatial layout in headwater stream beds

open access: yesRestoration Ecology, Volume 33, Issue 7, September 2025.
Current European Union objectives for 2030 aim to restore ecosystems to halt biodiversity loss. Here, we studied the consequences of headwater stream restoration by placing large wood in the streambed to act as flow deflectors. We hypothesized that these flow deflectors would create a fine‐scale spatial arrangement of habitats, fostering a diverse and ...
Cybill Staentzel   +4 more
wiley   +1 more source

TRAPPIST-Nord

open access: yes, 2016
Un nouveau télescope a été inauguré à l’observatoire de L’Oukaimeden au Maroc en présence de chercheurs de l’université Cadi Ayyad de Marrakech et d’astronomes de l’université de Liège. Cet observatoire se trouve dans l’Atlas marocain à 2 750 m d’altitude et bénéficie de plus de 250 nuits claires par an.
Jehin, Emmanuel   +7 more
openaire   +1 more source

The hidden subtlety of beer foam stability: A blueprint for advanced foam formulations

open access: yesThe Physics of Fluids
It is believed that the structure and properties of protein-rich layers influence beer foam stability through their impact on both surface tension and surface viscosity.
E. Chatzigiannakis   +4 more
semanticscholar   +1 more source

Religion and Reproductive Surgery in New Spain and Mexico

open access: yes
Religious Studies Review, Volume 51, Issue 4, Page 983-986, December 2025.
Adam Warren
wiley   +1 more source

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