Flagstaff mandates that shielding be placed on outdoor lighting so that it doesn’t project skyward. There are also limits on the lumens of light allowed per acre of land.The result is a starry sky visible even from the heart of the city. Flagstaff’s Buffalo Park, just a couple miles from downtown, measures about a 4 on the Bortle scale, which quantifies the level of light pollution. (The scale goes from 1, the darkest skies possible, to 9, similar to the light-polluted night sky of, say, New York City. To...
Scientists have found new evidence that desertification, potentially linked to global warming, leads to large amounts of nutrient-rich dust landing in the sea, causing...
Three satellites from Curtin University’s Binar Space Program—Binar-2, 3, and 4—burned up in Earth’s atmosphere just two months after their launch. The incident, which...
Prof Edyvane believes that with regulation, whale tourism has the potential to create jobs and grow Timor-Leste’s economy. The country is one of the...