Various molecules, atoms and particulates float around in the air, and these reflect light ... A decently dark site in a rural area has a sky background of about 21 mag/arcsec 2.

Setting your device to dark mode means that it will display white text on a dark background ... But blue light comes primarily from the sun, scatters into our atmosphere, and colors our sky ...

Now, a new study has found that the night sky may actually be brightening ... "[And] when our eyes are dark adapted, they're more sensitive to blue light. So replacing that long-wavelength ...

Why isn't space colorful, like the blue daytime sky ... dark." Miranda Apfel, who is also a graduate student of astronomy and astrophysics at UCSC, agreed with Hutchinson-Smith. "Stars give off ...

International Dark Sky Week is a global ... s clearest night skies. Far from light pollution of the urban areas, its enormous sand dunes provide an ideal background to observe constellations ...

Earlier this year, in a letter to the journal Science, two American astronomers introduced a new term to capture the loss of our ability to observe the night skies due to light pollution.

The proposal would establish a midnight curfew for outdoor lighting and restrict the temperature of light sources to lower temperature bulbs that emit orange, not blue, light. Other elements of ...