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 say they have found the world's largest coral near the Pacific's Solomon Islands, announcing Thursday a major discovery "pulsing with life and color."...
Getty ImagesOpinions about nuclear power remain highly polarised. Supporters claim the technology is indispensable if climate targets are to be reached. Among them is...
Parts of the Great Barrer Reef have suffered the highest coral mortality on record, Australian research showed Tuesday, with scientists fearing the rest of...
Elon Musk-led SpaceX's Polaris Dawn spacecraft on Tuesday launched the first-ever crew for 'all-civilian' spacewalk. The first commercial spaceflight mission with a spacewalk carries...
Computers are a significant investment, especially for those on fixed incomes. Fortunately, with proper care and maintenance, older computers can remain secure and...