William K. Hartmann | |
|---|---|
 Hartmann being interviewed in 1998 | |
| Born | June 6, 1939 |
| Alma mater | Pennsylvania State University University of Arizona |
| Awards | G.K. Gilbert Award, Carl Sagan Medal for Excellence in Public Communication in Planetary Science |
| Scientific career | |
| Fields | Planetary science |
| Institutions | Planetary Science Institute |
William Kenneth Hartmann (born June 6, 1939) is a noted planetary scientist, artist, author, and writer. He was the first to convince the scientific mainstream that the Earth had once been hit by a planet sized body (Theia), creating both the Moon and the Earth's 23.5° tilt.[1]
- ^ Birth of the Planet, November 24, 2008, Channel 4