NASA’s Digital Learning Network announces a series of monthly webcasts. Join Dr. Joel Levine each month as he features a different topic of planetary study and talks about what NASA has done to help us better understand our home planet and neighbors in our solar system. This series is designed to target middle school students.
The Earth: Up Close and Personal
Feb. 17, 2011, 1-2 p.m. EST
Join Dr. Joel Levine to learn more about our home planet. This webcast will explore the components of the Earth system. The lithosphere (the solid planet), the hydrosphere (the water), the atmosphere (the air) and the biosphere (life) will be discussed. Various processes on the Earth system, such as volcanism and the water cycle, also will be discussed.
Mars: Up Close and Personal
March 17, 2011, 1-2 p.m. EST
Join Dr. Joel Levine to learn more about the Red Planet. Today, Mars is a cold, dry, inhospitable planet with a very thin atmosphere. Scientists believe that early Mars was very hospitable with abundant surface water and atmospheric pressure similar to Earth’s. This webcast will explore Mars’ past and what makes Mars and Earth so different today.
The Heat Is On: Global Warming — Causes and Consequences
April 21, 2011, 1-2 p.m. EST
Join Dr. Joel Levine to learn more about global warming and how it is affecting our planet. The temperature of the surface of Earth and the other planets is controlled by incoming solar radiation and the outgoing thermal or infrared radiation generated at the surface by the absorption of the incoming solar radiation. This webcast will discuss the causes and consequences of global warming.
NASA’s Digital Learning Network allows the next generation of explorers to connect with scientists, engineers and researchers without leaving the classroom. The network provides distance-learning events designed to educate through demonstrations and real time interactions with NASA experts.
For more information about this series of webcast events, visit http://dln.nasa.gov/dln/