# Main Page

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| Welcome to Wikipedia,
the **free encyclopedia** that anyone can change.

Search the 282,114 articles in the Simple English Wikipedia
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| About Wikipedia
This is the front page of the **Simple English Wikipedia**. *Wikipedias* are places where people work together to write encyclopedias in different languages. We use Simple English words and grammar here. The Simple English Wikipedia is for everyone, such as children and adults who are learning English.

There are 282,114 articles on the Simple English Wikipedia. All of the pages are free to use. They have all been published under both the *Creative Commons Attribution/Share-Alike License 4.0 International License* and the *GNU Free Documentation License*. **You can help here!** You may change these pages and make new pages. Read the help pages and other good pages to learn how to write pages here. If you need help, you may ask questions at Simple talk.

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When writing articles here:
* **Use Basic English words and shorter sentences.** This allows people to understand complex terms or phrases.
* **Write good pages.** The best encyclopedia pages have useful, well-written information.
* **Use the pages to learn and teach.** These pages can help people learn English. You can also use them to make a new Wikipedia to help other people.
* **Simple does not mean short.** Writing in Simple English means that simple words are used. It does not mean readers want basic information. Articles do not have to be short to be simple; expand articles, add details, but use basic vocabulary.
* **Be bold!** Your article does not have to be perfect because other editors will fix it and make it better. And most importantly, do not be afraid to start and make articles better yourself.
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| Selected Very Good Article

**Neptune** is the eighth and farthest planet from the Sun in the Solar System. It is an ice giant. It is the fourth-largest planet in the system.
Neptune's mass is 17 times Earth's mass and a little bit more than Uranus' mass. Neptune is denser and smaller than Uranus. Its greater mass makes its gravity make its atmosphere smaller and denser.
It was named after the Roman god of the sea, Neptune. Neptune's astronomical symbol is ♆, the trident of the god Neptune.
Neptune's atmosphere is mostly hydrogen and helium. It also contains small amounts of methane which makes the planet appear blue. Neptune's blue color is much darker than the color of Uranus. Neptune also has the strongest winds of any planet in the Solar System, as high as 2,100 km/h or 1,300 mph.
Urbain Le Verrier and John Couch Adams were the astronomers who discovered Neptune. Neptune was not discovered using a telescope. It was the first planet to be discovered using mathematics. In 1821, astronomers saw that Uranus' orbit was different from what they expected. Another nearby planet's mass was changing Uranus' orbit. They found Neptune was the cause.
*Voyager 2* visited Neptune on 25 August 1989. It was the only spacecraft to visit the planet. Neptune used to have a huge storm known as the "Great Dark Spot". Voyager 2 discovered the spot in 1989. The dark spot was not seen in 1994, but new spots were found since then. It is not known why the dark spot disappeared. Visits by other space probes have been planned.
Neptune has five rings. These rings are hard to see from the Earth.
**more...**Other very good articles – Proposals – Requirements
 | Selected Good Article
Coldplay in 2025
"**Trouble**" is a song recorded by British alternative rock band Coldplay *(pictured)*. It was composed for their first album, *Parachutes*. The band wrote the song and produced it with British record producer Ken Nelson. The word "trouble" is repeated many times in the lyrics of the song. The song was released on 26 October 2000 as a single. It was the third single of the album.
**more...**Other good articles – Proposals – Requirements
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| Did you know...

*From a collection of Wikipedia's articles:*

- ... that the **Stanford prison experiment** was stopped after six days, because guards had started to torture prisoners *(pictured)*?

- ... that Speaker **Mike Johnson** has less experience in the U.S. House of Representatives than any other speaker since 1883?

- ... that Mark Ronson wrote a song for the dance rehearsals of the movie *Barbie* which later became "**Dance the Night**"?

- ... that even though women were forbidden from attending the Ancient Olympic Games, Spartan princess **Cynisca** won them twice?

- ... that in 2021, the **United Arab Emirates** became the first Arab country to reach Mars?

- ... that **two girls who killed their mother** when they were teenagers successfully studied at university, after serving their sentence; one became a lawyer and the other a scientist?

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**See the pages of the Wikimedia Foundation Governance wiki, too.**
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