The blue of the sky comes from Mars’ atmosphere and ... And those dust molecules are super good at absorbing blue light. …the ...

If Earth had no atmosphere like the Moon there would be no scattering, and the sky would remain black, even in daylight ...

Night’s window was opening. As the sky turned a deep shade of blue, stars began to appear above Hovenweep National Monument, Utah, one of the world’s first Dark Sky Parks. As a campfire ...