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The US Army spent roughly 5 billion dollars on a camouflage designed to work everywhere, and it failed because of a quirk of human vision, its three low-contrast colours blurred into a single pale blob at a distance, so the pattern meant to conceal soldiers actually made them stand out against almost every backdrop.
The Moon is airless, radiation-drenched and can swing from about minus 173 to plus 127 degrees Celsius, yet NASA-led modelling found that some common Earth fungi and bacteria—from human skin, soil and damp bathrooms—could survive dormant for weeks or even months in cold, shaded niches near the lunar poles.
For nearly three decades, standard cosmology has treated dark energy as a constant. Now a unified catalogue of 2,884 exploding stars, combined with maps of galaxies and the Big Bang’s afterglow, has added another significant hint that dark energy changes over time—and may be weakening as the universe ages.
Dropping a dead solar panel into a U.S. landfill costs $1 to $5, while recycling the same panel has been estimated at $15 to $45. That gap helps explain why most go into the ground, even though a plant that opened in Georgia this year says it recovers 96 percent of a panel's material value.
