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2 Sep 2009, 05:12 UTC
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STEREO (Solar TErrestrial RElations Observatory) is a two-spacecraft NASA mission orbiting the Sun near Earth’s orbit to study the dynamic eruptions of mass from the outermost atmosphere of the Sun, the Corona. The STEREO spacecraft are very large and have suites of instruments on-board studying specific types of solar science questions. We will feature the science and data being gathered from the IMPACT (In-situ Measurements of Particles and CME Transients) instrument suite. In this podcast we will talk with Dr Janet Luhmann, the principal investigator of IMPACT, about the origin and consequences of coronal mass ejections (CME's), which are the most energetic eruptions on the Sun. Dr. Luhmann shares why we should care about what happens on the Sun. We will also discuss with IMPACT’s Education and Public Outreach Lead, Dr. Laura Peticolas, about whether we can hear the Sun. Can we hear the violent flares and wind that it spits out? Not really in the sense of sound – because there are no sounds in space; but we CAN use the particles, magnetic and electric field and the image data and convert the data into sound to demonstrate what the data tell us. We will explore how images can be “sonified” and how we can musically “play” the Sun. Credit: Center for Science Education at UC Berkeley's Space Sciences Laboratory URL: http://cse.ssl.berkeley.edu/impact/about.html BIO’s Dr Janet Luhmann is Senior Fellow at the Space Sciences Laboratory, University of California in Berkeley and the principal investigators on the STEREO-IMPACT mission launched in 2006. She was responsible for a lot of the Pioneer Venus magnetometer data analysis, and has been a Co-Investigator on two POLAR experiments. She is currently a member of the Cassini Saturn Orbiter Ion-Neutral Mass Spectrometer Team, Co-director of an NSF Science and Technology Center for Space Weather Modeling. A major focus of her work has been the comparison of spacecraft observations with models of the solar wind interaction with the planets. Dr Laura Peticolas is an educator and scientist with many years of experience in studying the aurora and in teaching physics to undergraduates, teachers, and the public. She creates high school and junior college lessons, in collaboration with teachers and the E/PO team. She also organizes and teaches at professional development workshops. As the lead E/PO personnel of the THEMIS, STEREO-IMPACT, and Wind E/PO efforts, she leverages efforts from multiple NASA missions that are studying everything from the Sun to auroras. ----------------------------------------------------------------------------------------------------- SPONSOR: Earl Wilson

The 365 Days of Astronomy Podcast is a project that is publishing one podcast per day, 5 to 10 minutes in duration, for all 365 days of 2009. The podcast episodes are written, recorded and produced by people around the world. We are looking for individuals, schools, companies and clubs to provide 5 - 10 minutes of audio for the daily podcast. You can do as few as 1 episode or up to 12 episodes (one per month, subject to our editorial discretion). Our goal is to encourage people to sign up for a particular day (or days) of 2009.

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