Key technology development could expand the use of NanoSats to astronomy. The NanoSat size intrinsically constrains the aperture diameter of an onboard telescope to a few centimeters; consequently it limits the sensitivity of the instruments and the scientific return of the mission. An obvious, but challenging, solution is to encapsulate a deployable telescope in a NanoSat platform and deploy it and operate it in space after launch. I presented at the SPIE Astronomy conference at Montreal, Quebec on June 26 2014, two concepts of folded telescopes capable of conducting search for exoplanets by transit, but also numerous other applications such as observations of Earth's surface and characterization of asteroids. A realistic technological path was also discussed.