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

Credit: Alison Klesman (ACEAP/NSF) ALMA’s 100-ton antennas stand scattered against the deep blue sky. This backdrop is only visible at the extreme altitude necessary to ensure perfect observing ...

We reached the watering hole. The view might have been beautiful, had we come to appreciate the way the deep blue sky dotted with a billion stars was streaked with red and violet light coming from ...