Touch the Invisible Sky

Touch the Invisible Sky is a 60-page tactile astronomy book written by astronomy educator Noreen Grice, and astronomers Simon Steel and Doris Daou,[1] and was published in 2007 by Ozone publishing.[2] The book contains colour images alongside Braille and large print descriptions of celestial objects, and colour photographs from the Hubble Space Telescope, Chandra X-Ray Observatory, and Spitzer Space Telescope, amongst others,[1] which are over-laid with TechnoBraille,[2] allowing visually impaired readers to feel the images. The images featured include nebulae, stars, galaxies and some of the telescopes used to photograph the celestial objects.[1] The images span a range of wavelengths on the electromagnetic spectrum, with a variety of textures and shapes used to convey the characteristics of the objects.[3] The objects featured include our own Sun, the star Eta Carinae, The Crab Nebula, and Kepler's Supernova.[4]

It was partly funded by NASA, who have also funded two other books by Grice, Touch the Universe and Touch the Sun,[5] and by an education grant from the Chandra mission.[1]

"We wanted to show that the beauty and complexity of the universe goes far beyond what we can see with our eyes!"

— Doris Daou, https://hubblesite.org/contents/news-releases/2008/news-2008-05.html