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NIGHTTIME LIGHT STUDY
Los Angeles swapped 140,000 of its 210,000 streetlights for LEDs over four years; energy use fell 63%, well past the 40% promised, saving $7 million a year on a $57 million programmeLos Angeles's streetlight upgrade significantly surpassed energy saving projections, achieving 63% reduction. This massive project replaced...
In 2025, Monash researchers developed a self-adaptive microporous ceramic; daytime cooling reached 19.5°C below ambient while nighttime overcooling was limited to 3.3°CScientists have unveiled an innovative ceramic designed for passive radiative cooling applications. This advanced material efficiently lowe...
Phoenix swapped black asphalt for a reflective road coating; noon surface heat fell 12°F, but pedestrians faced higher radiant heatIn an effort to lower urban heat, Phoenix tested innovative reflective pavement coatings on its roads, revealing that treated asphalt kept ...
In 2019, Buffalo scientists coated aluminum film with a cooling polymer; a small prototype cooled an enclosed box by 11°F by day and 20°F at nightScientists have engineered a cost-effective film utilizing aluminum foil combined with a polymer layer. This innovative film actively cools...
In 2025, researchers built a box from porous PMMA sheets that reflected 96% of sunlight; 80°F outdoor air measured 65.3°F inside without electricityInnovative materials scientists are exploring passive cooling techniques to lessen the demand for air conditioning. They have engineered a ...
In a 2025 study, Penn State researchers tested porous PMMA sheets that reflected 96.4% of sunlight; a test box stayed 14.7°F cooler than the outdoor airInnovative researchers have crafted a groundbreaking porous plastic sheet that cools without any electrical input. By reflecting sunlight a...
Scientists tested reflective pavement through an Australian summer, and the road surface stayed cooler, but midday radiant heat increased above itA western Sydney trial revealed reflective roads cool surfaces but raise pedestrian temperatures. This study tracked the trade-off over a y...
In 1997, NASA sent a lightning sensor into orbit aboard TRMM to study storms. 29 years later, the mission’s data still helps scientists understand lightning, rainfall and climateNASA's Lightning Imaging Sensor aboard TRMM studied lightning's role in weather. Earlier missions observed lightning from space, revealing ...
In 2025, Rubin's 3.2-billion-pixel camera in Chile began watching the universe. 1 year later, it can trigger 7 million alerts a night in 40 secondsEvery forty seconds, the Vera Rubin Observatory captures fresh images of the sky, thanks to its state-of-the-art camera and data processing...
Earlier this year, a California startup received approval to launch a 59-foot mirror into orbit. Two years later, the demonstration could redirect sunlight onto chosen points on Earth, allowing crews to keep working after darkA California startup just got FCC approval to test a 59-foot mirror satellite in orbit. The spacecraft, named Eärendil-1, will catch sunlig...
In 2008, Danish scientists followed strange white trails behind offshore wind turbines to understand what caused them. 18 years later, the research showed that blade-driven air mixing can contribute to shallow fog formation in winterOffshore wind turbines can stir air layers, influencing fog formation and clearing. Specific winter conditions at Danish wind farms showed ...
In 2017, scientists watched the sky go dark during a Solar Eclipse, and across 17 species. Animals suddenly behaved differently, from giraffes running to tortoises mating, revealing a surprising response to the disappearance of daylightIn an extraordinary 2017 solar eclipse, zoo animals displayed peculiar behaviors that took researchers by surprise. Galapagos tortoises sta...
In 1989, scientists demonstrated that carefully timed bright light can reset the body's biological clock. Years later, it produced breakthroughs in treating jet lag, insomnia, shift-work disorder and disrupted sleepIn 1989, scientists proved bright light therapy resets your biological clock. It changed sleep medicine overnight. Timed light exposure shu...
These windows keep homes cool by 5°C: Scientists develop special glass that reduces AC use and electricity billsNew transparent cooling technologies are being developed for windows. These advanced coatings reflect unwanted solar heat while allowing in...
Delayed healing, emotional distress, false hope: Psychologists say stalking your ex's social media may be doing more harm than goodScrolling through an ex's social media late at night might feel comforting, but psychologists warn of a significant cost. A study found tha...
Scientists discover new glow-in-the-dark mushroom species in Mexico's cloud forests: Here's why they glowMexico's cloud forests are home to newly discovered bioluminescent fungi, some species entirely new to science. These glowing mushrooms, be...
Earth is getting ever brighter at night. Here's the reason whyEarth's nighttime illumination increased by 16% between 2014 and 2022, driven by urban expansion and energy access in developing regions. H...