Asteroid impacts, comets, moon, space missions
H. Jay Melosh
H. Jay Melosh, Distinguished Professor of Earth, Atmospheric and Planetary Sciences and Physics, can discuss a variety of topics including asteroids, comets, the moon and planets. Melosh has served as a member of the science team for three NASA space missions to study comets and one lunar gravity mission.
He is an expert in impact cratering and a co-creator of "Impact: Earth!" a tool to estimate the potential damage a comet or asteroid would cause if it hit the Earth. He also is co-author of the 2010 National Research Council report “Defending Planet Earth” that explored the feasibility of detecting all Earth-crossing asteroids greater than 140 meters in diameter and ways to mitigate their hazard.
He also can discuss:
- The exchange of microorganisms between the terrestrial planets and the possibility of life on other planets.
- The possibility of lava tubes on the moon that could provide shelter for human colonies.
- The asteroid impact theory of dinosaur extinction.
- The theory of the giant impact origin of the moon.
Contact: H. Jay Melosh, email@example.com