Prof. Henry Throop is a Senior Lecturer at the University of Pretoria and a Senior Scientist with the Planetary Science Institute in Tucson, Arizona, USA. He received a PhD in Planetary Science from the University of Colorado, USA, in 2000. His work focuses on the outer solar system and he has published over 40 articles in scientific journals on topics ranging from to rings of Saturn and Jupiter, to planet and star formation, to astrobiology and the origins of life, to searching for (and co-discovering) Pluto's smallest moon, Styx, in 2012. He is a frequent consultant to the US's NASA and the National Science Foundation.
While working at NASA, he was responsible for the oversight and management of two of the NASA's major scientific research programs. Throop’s work has been featured in Science, Nature, Time, The Washington Post and on the History Channel and National Geographic TV. He has been interviewed on SABC Morning Live, in the Sunday Times and on SAfm. Throop has been working on NASA’s New Horizons mission since 2003, in preparation for its arrival at Pluto in July, 2015.