# "Mostly Harmless: A Hitchhiker's Guide to the Galaxy Entry on
 Earth" or alternatively: # "Earth: The Mostly Harmless
 Planet That Got Demolished on a Thursday" or: # "Sol III
 (Earth): An Insignificant Blue-Green Planet in the Unfashionable End
 of the Galaxy"
# EARTH
**Earth** (also known as Sol III, Tellus, Terra, Gaia, or "Mostly
 Harmless") is a small, utterly insignificant blue-green planet
 orbiting an unregarded yellow sun in the uncharted backwaters of the
 unfashionable end of the Western Spiral arm of the Galaxy.
For reasons that remain entirely unclear to galactic civilization,
 Earth's inhabitants spent most of their history being unhappy and
 blaming each other for it, while simultaneously inventing the digital
 watch—a device so spectacularly primitive that most sentient species
 still can't quite believe it.
The planet was notable for having:
- **Dolphins**: The second most intelligent species on the planet
 (after mice, but before humans)
- **Fjords**: Particularly the ones in Norway, which won an award
- **Tea**: A beverage that Arthur Dent considered almost, but not
 quite, entirely unlike what the Nutrimatic machines produced
- **Vogons**: Who demolished it to make way for a hyperspace bypass
Earth's entry in the *Guide* famously consisted of just two words:
 "Mostly Harmless." This was later expanded by field
 researcher Ford Prefect to include details about the planet's
 atmospheric composition, the fact that its life forms were so
 amazingly primitive they still thought digital watches were a pretty
 neat idea, and a warning about the local planning regulations.
The planet was destroyed on a Thursday, which never really sat well
 with anyone.