Imagine a space telescope with a mirror stretching 50 meters across! That's larger than the width of a U.K. soccer field and ...

This space mirror idea was taken up again by German physicists during World War Two. At the Nazi weapons research centre in Hillersleben, scientists worked on a design to build a terrifying ...

Using attitude-control jets, ground controllers could position the space mirrors to direct the reflected rays of the sun down toward the night side of the earth.