The Hitchhiker's Guide to the Galaxy

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'''''The Hitchhiker's Guide to the Galaxy'''* is a science fiction comedy series by Douglas Adams. It started out as a radio show series for the BBC Radio 4 in 1978. 

Between 1979 - 1992, Adams wrote a series of five books.

In 1980, a second radio series was broadcast.

In 1981, it was made into a television series. 

In 2004, the third radio series was broadcast.

In 2005, it was made into a movie, and the fourth and fifth radio series were broadcast. A CD was released following the final episode transmission of each radio series.

It has also been a computer game, and several stage plays and comic books. Douglas Adams also suggested he would write a sixth book but he died before he could complete it, so Eoin Colfer wrote the sixth book in the series.

In 2018, the sixth radio series, the *Hexagonal Phase*, was broadcast on BBC Radio 4. 
It featured Professor Stephen Hawking introducing himself as the voice of *The Hitchhiker’s Guide to the Galaxy Mk II* by saying: "I have been quite popular in my time. Some even read my books".

## Books 
The six books in the *Hitchhiker's Guide* series are:
* *The Hitchhiker's Guide to the Galaxy*
* *The Restaurant at the End of the Universe*
* *Life, the Universe and Everything*
* *So Long, and Thanks for all the Fish*
* *Mostly Harmless*
* *And Another Thing''

## Synopsis 
The radio, book, TV and movie versions differ from each other. The same basic plot is used but they sometimes contradict each other.  This is due to Adams rewriting the story for each new medium. 
In all versions, the story follows the adventures of Arthur Dent. He is an Englishman. His house is being bulldozed to make way for a bypass. At the same time the Earth is being demolished by the Vogons to make way for an intergalactic bypass. The vogons are a race of unpleasant and bureaucratic aliens. 

Dent's friend, Ford Prefect, is an alien. He is a researcher for the eponymous guidebook. He rescues Dent from Earth's destruction.

Zaphod Beeblebrox is Ford's eccentric semi-cousin. Beeblebrox is the Galactic President. He has stolen the *Heart of Gold*, a spacecraft equipped with the Infinite Improbability Drive. The depressed robot Marvin the Paranoid Android and Trillian are crew members.
Trillian was known as Tricia McMillan, a woman Arthur once met at a party in Islington. Beeblebrox saved her from Earth's destruction. She is the only other human survivor.

Arthur learns that the Earth was actually a giant supercomputer. It was created by another supercomputer, Deep Thought. Deep Thought had been built to give the answer to the "Ultimate Question of Life, the Universe, and Everything".  It gave the answer as "42". The creators of Deep Thought were disappointed and Deep Thought was then instructed to design the Earth supercomputer to determine what the question actually is.

The Earth was destroyed by the Vogons just before its calculations were due to complete. Arthur becomes the target of the descendants of the Deep Thought creators, believing his mind must hold the Question. With his friends' help, Arthur escapes and they decide to have lunch at The Restaurant at the End of the Universe. They have more adventures.

## References