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energy efficiency

Technology

A hole-filled battery could make wearables more breathable than cotton

A lithium battery patterned with holes is flexible, stretchable and allows more airflow than cotton, making it perfect for fitness tracking or medical monitoring wearables

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Environment

Trump-backed Stargate Project could strain the US energy grid

Analysis

Environment

Farms can install vertical solar panels without reducing crop yields

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Environment

Reliance on wind and solar does expose nations to energy price spikes

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Environment

Fire at world’s largest battery facility is a clean energy setback

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Environment

Zero-carbon shipping fuel could be a new source of pollution

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Technology

Crystal-based cooling could make fridges more sustainable

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An artistic celebration of the Dark Energy Spectroscopic Instrument (DESI) year-one data, showing a slice of the larger 3D map that DESI is constructing during its five-year survey. By mapping objects across multiple periods of cosmic history with extremely high precision, DESI is allowing astronomers to make unprecedented measurements of dark energy and its effect on the accelerating expansion of the Universe. DESI???s map reveals the large-scale structure of the Universe, showing clumps of galaxies separated by voids where there are fewer objects. This pattern is a result of large pressure waves that permeated the early Universe and is reflected in the cosmic microwave background ??? a 2D snapshot of the radiation that filled the Universe shortly after the Big Bang, which bears the imprint of the 3D galaxy distribution. DESI is mounted on the U.S. National Science Foundation Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory, a Program of NSF NOIRLab. This version of the DESI map includes 600,000 galaxies ??? less than 0.1% of the survey's full volume. The locations of objects in the data slice do not correlate with their locations on-sky shown in this image.

Space

Could 2025 be the year we finally start to understand dark energy?

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Environment

Are vast amounts of hydrogen fuel hidden below Earth's surface?

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Environment

Salt batteries are finally shaping up – that's good for the planet

With lithium in short supply, sodium-ion batteries might offer cheap energy storage with less environmental impact

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Environment

Extreme heat is now making cities unlivable. How can we survive it?

Features

Space

Einstein’s theories tested on the largest scale ever – he was right

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Environment

Drought, fires and fossil fuels push CO2 emissions to a record high

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Environment

Why do we burn more coal and wood than ever, asks a provocative book

Culture

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