Find out how dermatologists at the University of California, San Francisco calculated what proper sunscreen application really costs. We explain what the recommended “shot glass” amount per body means, why price affects how much people apply, and how clothing and a hat reduce the cost. They compared SPF 50 lotions with similar ingredients and showed a range from a few cents to a few dollars per application.
Learn how unusual rains in early February 2026 turned the dry season in Córdoba, northern Colombia, into major floods along the Sinú and around Lorica. We explain what Landsat 9 images reveal, UNGRD estimates of affected families and agriculture, and why the state declared a state of emergency.
Find out how the University of Córdoba team created a regional gully map for Andalusian olive groves in the Guadalquivir basin and why it changes the fight against soil erosion. We explain what the model reveals about active hotspots and how deposits end up in reservoirs after heavy rains. Using orthophoto series data from 2008–2019, it shows where to intervene first.
Find out why the Smile spacecraft was delivered to French Guiana and what it will measure in space. The joint ESA–Chinese Academy of Sciences mission on a Vega-C rocket has a launch window from 8 April to 7 May 2026, and its X-ray and UV cameras should for the first time provide a complete picture of Earth’s response to the solar wind.
Find out how UC San Francisco scientists in Nature Neuroscience showed that the interval between rewards—not the number of repetitions—speeds up associative learning. In experiments on mice, they tracked the dopamine signal and compared short and long intervals. The findings raise questions for school, addictions, and artificial intelligence.
Learn how MIT researchers developed microscopic silicon metastructures that use excess heat in a chip instead of electricity for analog matrix-vector multiplication – a key operation in machine learning. We bring what the paper published in Physical Review Applied shows, what applications it promises for thermal monitoring of electronics, and where the current limits are.