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The aurora borealis was visible as far south as Florida on Thursday. Photos show the sky lit up in red and purple, even in some brightly-lit areas like New York City and Chicago .
On May 10, Florida residents were treated to the spectacular sight of the northern lights, compliments of strong solar flares. See what you missed.
With increasing urban lighting even in remote areas, finding that dark sky site is tough these days. Backyard Universe: Want to see a cool astronomical event? Head for a dark sky site.
Groveland is currently retrofitting old streetlamps with dark-sky-friendly lights, which are shielded downward with a low color temperature with the goal to replace every light fixture by 2027. [21] In 2023, the City of Groveland became the first certified International Dark Sky Community in Florida and the Southeast US.
A dark-sky preserve status enables high-quality astronomical observation in Paranal Observatory. [1] A dark-sky preserve (DSP) is an area, usually surrounding a park or observatory, that restricts or reduces light pollution or maintains and protects naturally dark night skies. Different terms have been used to describe these areas as national ...
The Bortle dark-sky scale (usually referred to as simply the Bortle scale) is a nine-level numeric scale that measures the night sky's brightness of a particular location. It quantifies the astronomical observability of celestial objects and the interference caused by light pollution .
A dark sky has become a rare commodity in the United States, but parks all across the country still offer stunning views of the cosmos and astronomy events of all varieties. Light pollution is one ...
As in all real images from our Arm of the galaxy much is obscured by the Great Rift, dark dust clouds that span from Cygnus to Centaurus. In astronomy , the Great Rift (sometimes called the Dark Rift or less commonly the Dark River ) is a dark band caused by interstellar clouds of cosmic dust that significantly obscure ( extinguish ) the center ...