Via @derrenbrown
“Remember the 1990s craze of Magic Eye posters? Just like those, the spectacular space pictures in this gallery can be brought to life in 3D when viewers use a trick of the eye – with no need for special glasses. Stare into the screen and allow your eyes to defocus. You will get double vision as each eye sees the L & R images separately. Move your head towards and away from the screen until the two middle images overlap. The single overlapping image should be in 3D.”