While quick to light up our world, we have not only been oblivious to polluting our skies, but are discovering that light pollution is having deleterious affects on human health and the health of our environment.
The haze that more or less obliterates – especially in towns and cities – what would be a clear, awe-inspiring, star-filled sky at night, is slow to be recognized for what it is: a smog of light pollution.
While the world celebrates the 50th anniversary of the July 20, 1969, Apollo 11 moon walk – and we are continually awed by the results of space exploration since – it is sobering to learn that in 85 percent of locations on Earth, only a few stars are visible when looking up to the sky at night.
For me, the astronomy forum centered around two days of riveting lectures that included ‘Einstein was Right! Completing the 1919 Relativity Experiment at the 2017 Solar Eclipse,’ ‘The History of the Universe from the beginning to the end: Where did we come from, where can we go?’ and ‘Preventing an Asteroid Extinction.’
The easiest way to prevent light trespass beyond our homes, aside from turning off unnecessary lighting, is to minimize the unintended projection and scattering of light from poorly aimed and poorly designed fixtures.