Your chance to ask the experts about Comet ISON

As Comet ISON nears its very close encounter with our sun in the early afternoon (EST) on Nov. 28, there are two chances to find out the latest about the comet from the scientists who have been studying ISON since its discovery just one year ago.

Tue., Nov. 26, 9pm EST/6pm PST
Reddit “Ask Me Anything” with Comet ISON researchers
Comet ISON is blazing towards a close approach with the sun on Thursday (Nov. 28). It has captured much popular and scientific attention due to its brightness, unique orbit, and spectacular appearance. It has already been studied by an unprecedented array of ground- and space-based telescopes, and even more incredible images are now being acquired by solar telescopes.

Answering your Comet ISON questions will be scientists studying Comet ISON and members of NASA's Comet ISON Observing Campaign team:
-Matthew Knight (Lowell Observatory)
-Karl Battams (Naval Research Laboratory)
-Elizabeth Warner (University of Maryland)
-Padma Yanamandra-Fisher (Space Sciences Institute)
-Ron Vervack (Johns Hopkins Applied Physics Laboratory)
Visit Reddit’s “Ask Me Anything” (AMA) page here:

Update November 27: The completed AMA is here.

Thu., Nov. 28, 1-3:30pm EST/10am-12:30pm PST
NASA Google+ Hangout: Comet ISON
NASA will host a Google+ Hangout as scientists follow the journey of Comet ISON while it slingshots around the sun. Watch and ask questions as NASA solar physicists track the comet live from the mission control for NASA’s Solar Dynamics Observatory (SDO) spacecraft during ISON’s closest approach to the sun.

The Hangout will be broadcast publicly on NASA Goddard Space Flight Center's YouTube and Google+ pages. The Hangout also will be carried live on NASA Television and the agency's website. Panelists for the Google+ Hangout are:
-C. Alex Young, solar physicist, associate director for Science in the Heliophysics Science Division and co-founder of The Sun Today (NASA Goddard Space Flight Center)
-W. Dean Pesnell, solar physicist and project scientist for the Solar Dynamics Observatory (NASA Goddard Space Flight Center)
-Karl Battams, comet scientist for the Naval Research Laboratory, Washington and solar spacecraft lead for NASA's Comet ISON Observing Campaign, joining from Kitt Peak Observatory in Ariz., where the solar telescope will be observing ISON
-Phil Plait, writes Slate's 'Bad Astronomy' blog and is an astronomer, science evangelizer and author of the books "Bad Astronomy" and "Death from the Skies!" NASA scientists will answer the public’s questions live on air on Google+, in the YouTube comments section during the live broadcast, or via Twitter using #ISON and #askNASA.

To join the Hangout, visit: