The sun emitted a strong solar flare, peaking at 4:55 p.m. EST, on Dec. 31, 2023. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event.
Astronomy
Jan 3, 2024
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Photoelectrochemical (PEC) water splitting is a potentially feasible strategy for converting solar energy to green hydrogen. However, current PEC systems suffer from relatively low charge separation efficiency and sluggish ...
Materials Science
Dec 29, 2023
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A team led by RIKEN researchers has investigated how special crystals convert light into electricity. Their findings will help inform efforts to improve their efficiency, which could lead to the crystals being used in solar ...
Analytical Chemistry
Dec 27, 2023
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The Earth's magnetic field plays a big role in protecting people from hazardous radiation and geomagnetic activity that could affect satellite communication and the operation of power grids. And it moves.
Planetary Sciences
Nov 28, 2023
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A new kind of "wire" for moving excitons, developed at the University of Michigan, could help enable a new class of devices, perhaps including room temperature quantum computers.
Nanophysics
Nov 28, 2023
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A map created by the Debt Observatory in Globalization in collaboration with the EJAtlas of Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), the Institute for Policy ...
Earth Sciences
Nov 27, 2023
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In the high-stakes fight against climate change, the United States—and the planet—are at a moment that is both hopeful and harrowing.
Earth Sciences
Nov 15, 2023
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For photovoltaic power generation, pn junction is the core unit. The electric field in the junction can separate and transport the electron and the hole to negative and positive electrodes, respectively. Once the pn junction ...
Optics & Photonics
Nov 10, 2023
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It's a world like no other: a metal-rich asteroid that could be the remnants of a small planet, or perhaps an entirely new type of celestial body unknown to science.
Space Exploration
Oct 14, 2023
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NASA's Psyche spacecraft rocketed away Friday on a six-year journey to a rare metal-covered asteroid.
Space Exploration
Oct 13, 2023
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