Imagine a world where you find a tasty looking recipe, gather the ingredients and simply press print. Engineer Hod Lipson is on a culinary quest to make 3D-printed food a reality.

In this episode of SciTech Now, a look into a culinary quest to make 3D-printed food a reality; the evolution of the legendary New York City rat; a breakthrough telescope that may lead to galactic discoveries; and sculptures that are both mesmerizing and mathematical.