The space telescope's image of a odd-looking spiral galaxy is, in reality, two distant galaxies overlapping each other.

Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on ...

Here's how an innovative flat lens could solve these problems for satellites and space-based telescopes. Understanding ...

An elliptical galaxy (at center) is seen being wrapped by a spiral galaxy forming a single "Einstein ring," but in reality is the result of a cosmic lens ... from two of the Hubble Space ...