Post-Premiere Google Hangout

Immediately following the premiere of "TechKnow" on Sunday, August 25, join our expert contributors Phil Torres and Kosta Grammatis for a live Google Hangout.

Hear more from the behind the scenes and ask them your questions about genetically-modified salmon, vertical farming and the Mars Curiosity Rover.

Watch the premiere at 7:30pm EST/4:30pm PST, and then join the Google Hangout at 8:00pm EST/5:00pm PST.

Follow us now on Google+ to be sure you don't miss the Hangout.