Pass a green laser beam through a vacuum glass bottle, the green beam will disappear inside of the bottle and reappear outside.

There is no light/EM waves/photons passing through the vacuum.

The laser beam/oscillating electrostatic force induces the glass atoms on the bottle to oscillate at the same frequency and direction, induces other side atoms on the bottle to oscillating at the same frequency and direction, and induces air to oscillate at the same frequency and direction to form a laser beam.

The action between the two glass walls where laser beam in and out is so-called radiation.

Sunlight induces earthlight and other planets' light simultaneously instantly through the universal repulsion force. Scientists used to call it levity.

Light speed in the vacuum space is infinite. All stars are shining at the same time forever. Sunlight took 8 minutes to get to earth is a lie.

Levity Was Once a Scientific Term

Levity originally was thought to be a physical force exactly like gravity but pulling in the opposite direction, like the helium in a balloon. As recently as the 19th century, scientists were still arguing about its existence.