| Origin of the Earth and Moon Robin M. Canup is a senior research scientist at the Boulder office of Southwest Research Institute. Kevin Righter is a senior research associate at the Lunar and Planetary Laboratory, University of Arizona. |
| Origin of the Earth and Moon Robin M. Canup is a senior research scientist at the Boulder office of Southwest Research Institute. Kevin Righter is a senior research associate at the Lunar and Planetary Laboratory, University of Arizona. |