Google has provided an explanation for its recent love-affair with UFOs.

The California-based Internet giant said Monday that it was paying homage to HG Wells, a British science fiction writer who was born on September 21, 1866. HG Wells, who wrote "War of the Worlds", is considered the father of the science fiction.

Google said, Wells "encouraged fantastical thinking about what is possible, on this planet and beyond."

On September 5, a UFO was seen on Google's home page abducting the letter "O", while another UFO appeared on September 15, showing a UFO over a field, where crop circles were used to spell out Google.

It is worth mentioning here that generally Google uses its doodles to commemorate significant events.