Satellite megaconstellations are becoming a serious problem to 21st century astronomy akin to urban light pollution, and speedy action is needed to mitigate, a new report finds.

Down on Earth, light pollution is a well-known phenomenon (SN: 7/9/16, p. 32) and the shift to LEDs, or light-emitting diodes, is worsening the problem. In 2010, LEDs constituted less than 1 ...

Artificial light pollution on Earth prevents a clear view of space for most of the world’s large astronomical observatories, a new study warns.. The research, published in the journal Monthly ...

Artificial light pollution here on Earth poses more of a threat to ground-based astronomy than even the next generation of commercial satellite constellations, says a prominent Chilean astrophysicist.

In fact, Petko's observation about an upsurge in light pollution is backed by data. A study published earlier this year in the journal Science indicates that on average, the night sky has gotten ...

Escondida, the largest copper mine in the world, and Zaldívar, another major copper deposit, are almost 100km away but still generate as much light pollution as a small city.

We can thank light pollution for that. Unfortunately, few stargazers these days enjoy unspoiled, pollution-free skies. But for those who do, it is often said that the average naked-eye limit is ...

Light pollution coupled with the Canadian wildfires is making stargazing increasingly difficult in the Chicago area, enthusiasts say. They’re calling on the city and others to curb light ...

Light pollution is recorded in this image taken by the NASA/NOAA Suomi-NPP satellite. ... “It felt like a win,” she told Astronomy. Still, she cautions against “overinterpreting” the data.