Touch the Invisible Sky
{{Infobox book
| author = Noreen Grice, Simon Steel, Doris Daou
| language = Braille, English
| published = 2007
| publisher = Ozone Publishing
| name = 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,{{Cite web|title=NASA Unveils Cosmic Images Book in Braille for Blind Readers|url=http://hubblesite.org/contents/news-releases/2008/news-2008-05|access-date=2020-08-16|website=HubbleSite.org|language=en}} and was published in 2007 by Ozone publishing.{{Cite web|date=2009-11-05|title=Exhibition Items - Louis Braille: His Legacy and Influence {{!}} Exhibitions - Library of Congress|url=https://www.loc.gov/exhibits/louis-braille/exhibition-items.html#obj13|access-date=2020-08-16|website=www.loc.gov}} 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, which are over-laid with TechnoBraille, 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. 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.{{Cite web|title=Chandra :: Educational Materials :: Touch the Invisible Sky|url=https://chandra.cfa.harvard.edu/edu/touch/|access-date=2020-08-16|website=chandra.cfa.harvard.edu}} The objects featured include our own Sun, the star Eta Carinae, The Crab Nebula, and Kepler's Supernova.{{Cite web|last=|first=|date=|title=Touch the Invisible Sky: A multi-wavelength Braille book featuring NASA images|url=https://www.researchgate.net/publication/228493291|archive-url=|archive-date=|access-date=2020-08-16|website=ResearchGate}}
It was partly funded by NASA, who have also funded two other books by Grice, Touch the Universe and Touch the Sun,{{Cite web|title=Exploring the Cosmos in Braille {{!}} Science Mission Directorate|url=https://science.nasa.gov/science-news/science-at-nasa/2008/15jan_touch/|access-date=2020-08-16|website=science.nasa.gov}} and by an education grant from the Chandra mission.
{{Quote|text=We wanted to show that the beauty and complexity of the universe goes far beyond what we can see with our eyes!|author=Doris Daou|title=|source=https://hubblesite.org/contents/news-releases/2008/news-2008-05.html}}