The ebook deal of the day over at Amazon today is three top-rated science books by Dava Sobel for only $.99 each (that’s 94% off the list prices).

– Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time
– A More Perfect Heaven: How Copernicus Revolutionized the Cosmos
– Galileo’s Daughter: A Historical Memoir of Science, Faith and Love

Note – this deal is valid only for today, Wednesday, January 4, 2012, until 11:59pm PST.