Alexander Tielens is a professor of astronomy at both Leiden University and the University of Maryland. He has held appointments at the University of California, Berkeley, NASA Ames Research Center, the University of Groningen, and the Dutch Space Agency; was the project scientist of the HIFI instrument on board of the Herschel Space Observatory; and was the NASA project scientist of the Stratospheric Observatory for Infrared Astronomy (SOFIA). He is a member of the Royal Netherlands Academy of Arts and Sciences and was awarded the Spinoza Prize in 2012.
'I am confident that this book will become an essential standard reference book for researchers in molecular astrophysics. I recommend it to all molecular astrophysicists.' David A. Williams, The Observatory Magazine '… the author, an award-winning astrophysicist, has written this work as an evangelist, aiming to convert more astronomers to the study of molecules in space ... The book would be suitable for advanced students in astrophysics, chemistry, and astrobiology, and as a reference for instructors and professionals ... Highly recommended.' S. P. Maran, Choice