#NGSSchat

• Thursday, April 21, 2016 @ 9:00 PM EDT
• Thursday, May 5, 2016 @ 9:00 PM EDT
• Thursday, May 19, 2016 @ 9:00 PM EDT
• Thursday, June 2, 2016 @ 9:00 PM EDT
• Thursday, June 2, 2016 @ 9:02 PM EDT
• Thursday, June 16, 2016 @ 9:00 PM EDT
• Thursday, July 7, 2016 @ 9:00 PM EDT
• Thursday, July 21, 2016 @ 9:00 PM EDT
• Thursday, July 21, 2016 @ 9:00 PM EDT
• Thursday, August 4, 2016 @ 9:00 PM EDT
• Thursday, August 18, 2016 @ 9:00 PM EDT
• Thursday, September 1, 2016 @ 9:00 PM EDT
• Thursday, September 15, 2016 @ 9:00 PM EDT
• Thursday, October 6, 2016 @ 9:00 PM EDT
• Thursday, October 20, 2016 @ 9:00 PM EDT
• Thursday, November 3, 2016 @ 9:00 PM EDT
• Thursday, November 17, 2016 @ 9:00 PM EST
• Thursday, December 1, 2016 @ 9:00 PM EST
• Thursday, December 15, 2016 @ 9:00 PM EST
• Thursday, January 5, 2017 @ 9:00 PM EST
• Thursday, January 19, 2017 @ 9:00 PM EST
• Thursday, February 2, 2017 @ 9:00 PM EST
• Thursday, February 16, 2017 @ 9:00 PM EST
• Thursday, March 2, 2017 @ 9:00 PM EST
• Thursday, March 16, 2017 @ 9:00 PM EDT
• Thursday, April 6, 2017 @ 9:00 PM EDT
• Thursday, April 20, 2017 @ 9:00 PM EDT
• Thursday, May 4, 2017 @ 9:00 PM EDT
• Thursday, May 18, 2017 @ 9:00 PM EDT
• Thursday, June 1, 2017 @ 9:00 PM EDT
• Thursday, June 15, 2017 @ 9:00 PM EDT
• Thursday, July 6, 2017 @ 9:00 PM EDT
• Thursday, July 20, 2017 @ 9:00 PM EDT
• Thursday, August 3, 2017 @ 9:00 PM EDT
• Thursday, August 17, 2017 @ 9:00 PM EDT
• Thursday, September 7, 2017 @ 9:00 PM EDT
• Thursday, September 21, 2017 @ 9:00 PM EDT
• Thursday, October 5, 2017 @ 9:00 PM EDT
• Thursday, October 19, 2017 @ 9:00 PM EDT
• Thursday, November 2, 2017 @ 9:00 PM EDT
• Thursday, November 16, 2017 @ 9:00 PM EST
• Thursday, December 7, 2017 @ 9:00 PM EST
• Thursday, December 21, 2017 @ 9:00 PM EST
• Thursday, January 4, 2018 @ 9:00 PM EST
• Thursday, January 18, 2018 @ 9:00 PM EST
• Thursday, February 1, 2018 @ 9:00 PM EST
• Thursday, February 15, 2018 @ 9:00 PM EST
• Thursday, March 1, 2018 @ 9:00 PM EST
• Thursday, March 15, 2018 @ 9:00 PM EDT
• Thursday, April 5, 2018 @ 9:00 PM EDT
• Thursday, April 19, 2018 @ 9:00 PM EDT
• Thursday, May 3, 2018 @ 9:00 PM EDT
• Thursday, May 17, 2018 @ 9:00 PM EDT
• Thursday, June 7, 2018 @ 9:00 PM EDT
• Thursday, June 21, 2018 @ 9:00 PM EDT
• Thursday, July 5, 2018 @ 9:00 PM EDT
• Thursday, July 19, 2018 @ 9:00 PM EDT
• Thursday, August 2, 2018 @ 9:00 PM EDT
• Thursday, August 16, 2018 @ 9:00 PM EDT
• Thursday, September 6, 2018 @ 9:00 PM EDT
• Thursday, September 20, 2018 @ 9:00 PM EDT
• Thursday, October 18, 2018 @ 9:00 PM EDT
• Thursday, November 1, 2018 @ 9:00 PM EDT
• Thursday, November 15, 2018 @ 9:00 PM EST
• Thursday, December 6, 2018 @ 9:00 PM EST
• Thursday, December 20, 2018 @ 9:00 PM EST
• Thursday, January 17, 2019 @ 9:00 PM EST
• Thursday, February 7, 2019 @ 9:00 PM EST
• Thursday, February 21, 2019 @ 9:00 PM EST