skylights

noun
  1. 1

    A window, dome, or opening in the roof or ceiling, to admit natural light.

  2. 2

    Diffuse sky radiationโ€”solar radiation reaching the earth's surface after having been scattered from the direct solar beam by molecules or suspensoids in the atmosphere.

  3. 3

    A hole in the upper part of a lava tube, yielding a view of the lava within.

Source: https://en.wiktionary.org/wiki/skylight, https://en.wiktionary.org/wiki/skylights