What lies beyond sky in space?

The answer to this is  that above the sky in space lies the vast emptiness itself.

Depending on your location, the Moon or other celestial bodies could be seen.

Beyond our solar system, countless stars and galaxies reside.

Sparse gas and dust particles are spread throughout the universe.

Various types of radiation, like solar wind and cosmic rays, permeate space.

If you're near a planet with an atmosphere, that would be above the sky.

Traces of matter from exploded stars may linger in some areas.

The mysterious dark matter, thought to be most prevalent, is invisible. pen_spark tune share more_vert

Source: NASA