đź§˝ Solar-powered system produces green hydrogen directly from air moisture
#energy
All the NASA s/c images of #3IATLAS shared today (and some more) can be found at https://science.nasa.gov/solar-system/comets/3i-atlas/comet-3i-atlas-image-gallery/ now - including this spectrum from the Imaging Ultraviolet Spectrograph on MAVEN taken on 28 September, showing hydrogen emitted from different sources, namely the comet (dim spot on the far left), hydrogen from Mars (bright emission on the right), and hydrogen flowing through our solar system between the planets (dim emission in the middle).
Luxembourg-based Hydrosat, which builds AI-based thermal infrared satellite tech to provide data for water resource management and more, raised a $60M Series B (Ingrid Lunden/Resilience Media)
https://resiliencemedia.co/hydrosat-rais…
November 19, 2025 -- Yesterday the House of Representatives passed the Epstein Files Transparency Act. (Heather Cox Richardson/Letters from an American)
https://heathercoxrichardson.substack.com/p/november-19-2025
http://www.memeorandum.com/251120/p56#a251120p56
A breakthrough in green hydrogen just happened in South Australia. Sparc Hydrogen achieved sustained hydrogen production using only sunlight and water—no electrolyzers, no electricity grid needed.
Their photocatalytic process uses concentrated solar energy to split water directly. With green hydrogen markets projected to hit $1.4 trillion annually by 2050, this could be the scalability breakthrough the industry needs.
Cutting-Edge Facility Generates Pure Water and Hydrogen Fuel from Seawater for Mere Pennies https://www.goodnewsnetwork.org/cutting-edge-facility-generates-pure-water-and-hydrogen-fuel-from-seawater-for-mere-pennies/
December 19, 2025 -- This past week feels like the final, chaotic days of a political era. (Heather Cox Richardson/Letters from an American)
https://heathercoxrichardson.substack.com/p/december-19-2025
http://www.memeorandum.com/251220/p17#a251220p17
OpenAI rolls out an update to let users adjust ChatGPT's characteristics, including how warm or enthusiastic it is, and its use of headers, lists, and emojis (Emma Roth/The Verge)
https://www.theverge.com/news/848435/openai-chatgpt-characteris…
A breakthrough for renewable energy storage: Italian company GES has developed a manganese-hydrogen battery that could reshape the grid.
It costs just €0.02 per kWh per cycle—dramatically undercutting lithium-ion—while lasting 10,000 cycles at 75% efficiency. Commercial rollout expected in 2027.