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News
Off-grid solar user in -20 F climate asks about 100-foot run, gets a clear answer: 'Run DC"
2+ hour, 30+ min ago (556+ words) In very cold regions, off-grid solar planning often comes down to where batteries can stay warm and how power should travel from a ground-mounted array. On Reddit, a poster asked whether a 100-foot run made more sense as panel DC…...
Mercury may be shrinking faster than scientists expected, study reveals
1+ hour, 40+ min ago (374+ words) CAPE CANAVERAL, Fla. — A new study shows that little, wrinkly Mercury may be shrinking faster than expected, the cosmos’ version of a grape shriveling into a raisin under the sun. Scientists from the German Aerospace Center’s Institute of Space Research…...
In Phoenix, north-facing solar panels can beat south-facing ones when summer AC use surges
3+ hour, 47+ min ago (621+ words) A counterintuitive solar idea gained attention online. In hot, sunny Phoenix, panels facing the "wrong" way can sometimes outperform south-facing panels when the goal is to keep pace with peak summer air-conditioning demand. That will not hold true everywhere — or…...
Classic Moon-formation simulations typically produced a ring of debris that assembled over months or years after a Mars-sized world struck early Earth. But simulations published in September 2026 that included temperature-dependent rock strength found that, under certain conditions, a coherent Moon-sized satellite could emerge in roughly five hours.
8+ hour, 26+ min ago (1286+ words) A September 2026 impact study found that strength retained by hot, partly solid rock can redirect Theia’s rebound and capture a coherent satellite within hours. By Terra Daily Editorial Team · Editorial process Published September 13, 2026 For decades, the standard computer version of…...
Planetarium upgrades bring outer space closer to home and Earth into focus
2+ hour, 56+ min ago (484+ words) ST. LOUIS – Some out of this world changes have come to the James S. McDonnell Planetarium at the Saint Louis Science Center. After undergoing a six-month technological upgrade, it is now the most advanced hybrid planetarium in the nation. "In…...
OPINION: Don't give up on Perseverance
3+ hour, 26+ min ago (883+ words) Editor's note: All opinions, columns and letters reflect the views of the individual writer and not necessarily those of the IDS or its staffers. In February 2012, the future of NASA’s Mars Exploration program looked bleak. The Obama administration’s 2013 budget request…...
Scientists: Mercury’s shrinkage accelerating | Northwest Arkansas Democrat-Gazette
2+ day, 16+ hour ago (31+ words) CAPE CANAVERAL, Fla. -- A new study shows that little, wrinkly Mercury may be shrinking faster than expected, the cosmos' version of a grape shriveling into a raisin under the sun....
Mercury May Be Shrinking Faster Than Scientists Thought
6+ hour, 46+ min ago (556+ words) Greek PM Kyriakos Mitsotakis and Emmanuel Macron discuss the space mission as well as GSI, Hormuz crisis and regional developments during Paris meeting New research indicates that Mercury, the solar system’s smallest planet, might be contracting more dramatically than previously…...
Comet NEOWISE Rising over the Adriatic Sea
5+ hour, 12+ min ago (132+ words) Explanation: This sight was worth getting out of bed early. Just over four years ago, Comet C/2020 F3 (NEOWISE) rose before dawn to the delight of northern sky enthusiasts awake that early. Up before sunrise on July 8th, the featured photographer was…...
Stardust Buried in Antarctic Ice Exposes an 80,000-Year-Old Cosmic Mystery
7+ hour, 38+ min ago (480+ words) Antarctic ice preserves traces of iron-60 from ancient stellar explosions, helping scientists track the Solar System’s movement through interstellar clouds and changing cosmic environments....