Many can be viewed or ordered directly from this site.
The galaxy is inclined an estimated 77 relative to the Earth (where an angle of 90 would be viewed directly from the side).
These holograms, the first of their kind ever made, cannot be viewed directly.
This allows pictures to be viewed in series fullscreen directly from the Finder.
It is located on the far side of the Moon and cannot be viewed directly from the Earth.
The ink appears green when viewed directly and changes to black when the note is tilted.
This accesses an electronic index that cannot be directly viewed.
Energy release was so titanic that it could not be viewed directly.
Hazard increases when viewed directly for long periods of time.
Samples obtained from patients may be viewed directly under the light microscope, and can often rapidly lead to identification.