To make space telescopes more powerful, scientists would have to make their lenses larger. The bad news is it's not only tricky to make huge lenses (remember Hubble's spherical aberration?), it's also expensive to manufacture and ship them out to space. That's why Lockheed Martin is currently developing a technology that could lead to lighter, thinner and relatively cheaper alternative to the traditional two-lens telescope design. The tech called Segmented Planar Imaging Detector for Electro-optical Reconnaissance (or SPIDER) replaces the classic lenses with thousands of tiny ones.