Robotic exploration of space is fascinating, complex and quite important to our understanding of the universe. To learn more about how scientists and engineers overcome challenges of robotic space exploration for successful data collection, join us for a live chat today (Tuesday, October 29) at noon EDT with Chris Impey, astronomer and author of Dreams of Other Worlds: The Amazing Story of Unmanned Space Exploration, and Nick Schneider, planetary atmospheric scientist a member of the NASA MAVEN Mission Science Team (Mars Atmosphere and Volatile Evolution Mission). The discussion will also delve into questions surrounding Mars's atmosphere which will be explored by the upcoming MAVEN orbiter mission to Mars, set to launch November 18. SA blogger Joanne Manaster will host this hangout.

The chat will begin in a video viewer below at noon EDT. If you have questions in advance, feel free to post them below in the comments section or in the comments section on Scientific American's YouTube page or G+ event page.

Viewers also may join in at this Google + event link or on Scientific American’s YouTube channel. The chat will be archived on the Scientific American YouTube channel.