The image shows what appears to be a purple-hued planet blocked out by some other planetary mass. No other information is available.
When Worlds Collide is also the name of a 1933 end-of-the-world science-fiction novel from Philip Wylie and Edwin Balmer.
The story focuses on a group of North American scientists who race to build a spacecraft to escape earth, which is doomed by environmental disasters brought on by a runaway planet on a crash course for earth.
When Worlds Collide was adapted into a 1951 film of the same name and was reportedly the inspiration for 1998's Deep Impact.