The video below is of a SETI Institute Google Hangout  devoted to a discussion of

the potential for the WISE telescope to detect extraterrestrial super-civilizations that acquired a large energy supply by building a mega-structure to harvest the energy of their star (“Dyson sphere“) or their entire galaxy.

The participants include

SETI Institute researchers Jill Tarter and Franck Marchis (host & moderator) will hangout with Jason Wright, professor of astronomy at Penn State, Matt Povich, professor of astronomy at Cal Poly Pomona and Freeman Dyson, theoretical physicist and mathematician at the Institute for Advance Study.

– Searching for Kardashev Type II and III Civilizations with WISE – SETI Institute