Results 121 to 130 of about 4,316 (299)

Water-planets in the habitable zone: atmospheric chemistry, observable features, and the case of kepler-62e and -62f

, 2016
Planets composed of large quantities of water that reside in the habitable zone are expected to have distinct geophysics and geochemistry of their surfaces and atmospheres.
Rugheimer, S., Sasselov, D., Kaltenegger, L.   +2 more
core   +2 more sources

Additional planets in the habitable zone of Gliese 581?

, 2009
Context. The 3-planet system that contains two super Earths has recently been verified around the M dwarf Gliese 581. Recent theoretical work into the system's habitable zone (HZ) still raises questions as to the habitability of the known planets ...
R. Zollinger, J. C. Armstrong
core   +1 more source

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao, Bangzhang Ma, Dianhan Xi, Jiaqi Wang, Yijia Chen, Yongying Liu, Xinlei Shao, Mowen Zhang, Guocheng Zhang, Jundong Chen, Katsunori Mizuno   +10 more
wiley   +1 more source

Smaller Than Earth Habitability Model (STEHM): The Lower Size Limit for Atmosphere Retention in the Habitable Zone

The Planetary Science Journal
With recent advances in exoplanet observational techniques enabling the discovery of increasingly smaller planets, a crucial question emerges in the search for habitable planets: how small can a planet be and still maintain an atmosphere?
Michelle L. Hill, Stephen R. Kane, Bradford J. Foley, Laura K. Schaefer   +3 more
doaj   +1 more source

Rainbows, Polarization, and the Search for Habitable Planets

Astrobiology, 2007
Current proposals for the characterization of extrasolar terrestrial planets rest primarily on the use of spectroscopic techniques. While spectroscopy is effective in detecting the gaseous components of a planet's atmosphere, it provides no way of detecting the presence of liquid water, the defining characteristic of a habitable planet.
openaire   +2 more sources

Inferring Brown Bear Hair Snare Interactions by Automatically Detecting Bipedalism on Camera Trap Images Using Pose Estimation and a Multilayer Perceptron

Remote Sensing in Ecology and Conservation, EarlyView.
This study proposes an automated method to infer brown bear hair snare interactions by detecting bipedal behavior in camera‐trap images using a pose estimation model and a multilayer perceptron (MLP). A YOLO‐based model, fine‐tuned from humans and dogs to a custom dataset, achieved high performance (≈93% keypoint precision and ≈96% classification ...
Arnau Campanera‐Moliné, Víctor Sazatornil, Lluís Brotons, Felipe Lumbreras Ruiz, Robert Benavente, Maguiña Ramilo‐Henry, Cristina Ramos, Santiago Palazón, Daniel Ponsa   +8 more
wiley   +1 more source

Requirements for Joint Orbital Characterization of Cold Giants and Habitable Worlds with Habitable Worlds Observatory

The Astronomical Journal
We determine optimal requirements for the joint detection of habitable-zone planets and cold giant planets with the Habitable Worlds Observatory (HWO). Analysis of 164 nearby stars shows that a coronagraph outer working angle of 1440 milliarcseconds (mas)
Sabina Sagynbayeva, Asif Abbas, Stephen R. Kane, Eric L. Nielsen, William Thompson, Sarah Blunt, Malena Rice, Jessie L. Christiansen, Caleb K. Harada, Elisabeth R. Newton, Yasuhiro Hasegawa, Philip J. Armitage, Tansu Daylan   +12 more
doaj   +1 more source

Proposing a Framework to Center Justice in Ambitious Science Teaching

Science Education, EarlyView.
ABSTRACT Though educators and researchers have developed shared theory and language for priorities necessary to disrupt the status quo toward more equitable science education, we lack a tool that organizes sets of teaching practices across an instructional unit to support enactment and rehearsal.
April Luehmann, Gena Merliss, Todd Campbell, Déana Scipio, Yang Zhang, Hannah Cooke, Elizabeth Wilson, Priya Pugh, Adma Gama‐Krummel   +8 more
wiley   +1 more source

Stellar Control on Atmospheric Carbon Chemistry, CO Runaway, and Organic Synthesis on Lifeless Earth-like Planets

The Astrophysical Journal
The abundances of atmospheric carbon species—carbon dioxide (CO _2 ), carbon monoxide (CO), and methane (CH _4 )—exert fundamental controls on the climate, redox state, and prebiotic environment of terrestrial planets.
Yoshiaki Endo, Yasuto Watanabe, Kazumi Ozaki   +2 more
doaj   +1 more source

Sentipensar [Feel‐Thinking] Cultivates Collective Scientific Sensemaking and Worldbuilding Within and Beyond Ecological Despair

Science Education, EarlyView.
ABSTRACT Educating youth about environmental and climate justice is crucial in realizing a sustainable and flourishing future. Yet this can be challenging given the intense eco‐emotions youth experience and express while learning about these consequential realities and their implications.
Kelsie Fowler
wiley   +1 more source