Jan Skowron

In the darkness of interstellar space drift millions of rogue planets — worlds not bound to any star. They are almost impossible to see, but when such a wanderer passes in front of a distant star, its gravity bends the light and momentarily creates a cosmic magnifying glass.

In the Galactic bulge, where the light of billions of stars merges into a continuous glow, four cold giants passed unnoticed. You can't see them through a telescope — too far, too dim.