Podcaster: Elizabeth Howell and Michael Collier
Title: Dancing Lunar Dust At Sunrise and Sunset
Music: “A Walk On the Moon” by Styve Bolduc. http://www.premiumbeat.com/royalty_free_music/songs/a-walk-on-the-moon
Description: Lunar dust has an electrical charge to it that, for reasons scientists are still trying to determine, causes it to leap from the surface when exposed to sunlight. Shaded regions of the moon appear to have a negative charge in comparison to spots in the sun, causing the dust to move back and forth across sunlit areas if there’s a shadowed crater in between.
Michael Collier of NASA’s Goddard Space Flight Center explains more about the leaping lunar dust model and its implications for our understanding of other airless bodies in the solar system, such as asteroids.
Bios: NLSI brings together leading lunar scientists from around the world to further NASA lunar science and exploration.
Dr. Michael Collier is an astrophysicist at NASA’s Goddard Space Flight Center who works as part of the Dynamic Response of the Environment At the Moon (DREAM) team in partnership with NLSI.
End of podcast:
365 Days of Astronomy
The 365 Days of Astronomy Podcast is produced by the New Media Working Group of the International Year of Astronomy 2009. Audio post-production by Preston Gibson. Bandwidth donated by libsyn.com and wizzard media. Web design by Clockwork Active Media Systems. You may reproduce and distribute this audio for non-commercial purposes. Please consider supporting the podcast with a few dollars (or Euros!). Visit us on the web at 365DaysOfAstronomy.org or email us at info@365DaysOfAstronomy.org. Until tomorrow…goodbye.