You can't see light. When it's dark, in a vacuum, if a person shines a beam of light straight across your eyes, you won't see it. Slightly technical, some physicists will disagree with this.
Mēs nevaram redzēt gaismu. Vakuumā, kad ir tumšs, un kāds jums tieši acīs spīdina gaismas staru, jūs to neredzēsiet. Mazliet tehniski, daži fiziķi šim faktam nepiekritīs.