Our search has the following Google-type functionality:
If you use '+' at the start of a word, that word will be present in the search results.
eg. Harry +Potter
Search results will contain 'Potter'.
If you use '-' at the start of a word, that word will be absent in the search results.
eg. Harry -Potter
Search results will not contain 'Potter'.
If you use 'AND' between 2 words, then both those words will be present in the search results.
eg. Harry AND Potter
Search results will contain both 'Harry' and 'Potter'.
NOTE: AND will only work with single words not phrases.
If you use 'OR' between 2 single words, then either or both of those words will be present in the search results.
eg. 'Harry OR Potter'
Search results will contain just 'Harry', or just 'Potter', or both 'Harry' and 'Potter'.
NOTE: OR will only work with single words not phrases.
If you use 'NOT' before a word, that word will be absent in the search results. (This is the same as using the minus symbol).
eg. 'Harry NOT Potter'
Search results will not contain 'Potter'.
NOTE: NOT will only work with single words not phrases.
If you use double quotation marks around words, those words will be present in that order.
eg. "Harry Potter"
Search results will contain 'Harry Potter', but not 'Potter Harry'.
NOTE: "" cannot be combined with AND, OR & NOT searches.
If you use '*' in a word, it performs a wildcard search, as it signifies any number of characters. (Searches cannot start with a wildcard).
Search results will contain words starting with 'Pot' and ending in 'er', such as 'Potter'.
William Sheehan is a psychiatrist, noted historian of astronomy, and amateur astronomer who has been an observer of Mercury and the other planets for many years. He has published numerous books on astronomy, including Planets and Perception (1988), The Immortal Fire Within: The Life and Work of Edward Emerson Barnard (1995), The Planet Mars (1996), Galactic Encounters and Celestial Shadows (both 2015) and Discovering Pluto (2018). Asteroid 16037 is named Sheehan in his honour.
Sheehan's history of observation and discovery is recommended reading . . . The journey to Mercury, seen through time's telescope, has been an undertaking of centuries. --Laurence Marschall Natural History This well-written account could inspire scientifically-inclined youngsters to think about a career in astronomy. . . . Suitably embellished with diagrams, historical plates, and superb color images. . . . The pictures are quite delightful and whet the appetite for future revelations by BepiColombo. . . . This beautifully produced and modestly inexpensive book concludes with a glossary, an appendix of basic data on the planet, a list of craters, a set of endnotes, and full index. All in all, a splendid primer for those future astronomers. --Observatory Magazine Mercury, the Solar System's innermost planet, was spotted in antiquity but remained an enigma until the 1960s. Science historian Sheehan's portrait of the body (known in ancient Greece as the scintillating one for its flicker) reveals it as an airless iron world with an eccentric orbit. He interleaves discoveries, from Johannes Kepler's prediction of a transit of Mercury in the seventeenth century to NASA's MESSENGER probe, which relayed gorgeous images and data (such as the presence of a wealth of volatile compounds on the surface) before crashing on the planet in 2015. --Barbara Kiser Nature In this fully up-to-date and beautifully illustrated account, Sheehan describes the growth of our knowledge of planet Mercury. From the puzzles it posed for early astronomers to radar studies in the 1960s, and from the first spacecraft fly-bys by the Mariner 10 probe in the 1970s to the latest images from the Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) orbital mission between 2011 and 2015, Mercury has slowly been brought into clear focus. --Nelson Noven Fahrenheit: A Pop Science Book Club There are fewer than two dozen books devoted to Mercury and this new one is easily the best introduction to the innermost planet, published at a time when a new space mission is underway. In six engaging chapters Sheehan takes us on an historical path of discovery, from a time when the planet was merely a shy, naked-eye enigma to the revelation of the iron-cored and battered rocky world explored by Mariner and MESSENGER. . . . After a thorough survey of the surface of Mercury--revealed in its geographical and geological entirety only since 2009--Sheehan concludes with an engaging history of the still more enigmatic world of Vulcan, the mythical innermost planet. . . . Rich in anecdote and illustration, this is a fine new book which is to be strongly recommended. --Richard McKim Journal of the British Astronomical Association Sheehan has done a brilliant job. . . . Add to that top-quality production standards and some lovely photographs from the Mariner and MESSENGER missions, and the result is a book that easily convinced me the Solar System's 'least interesting' planet is still a pretty fascinating place. --Brian Clegg Popular Science (UK)