Jump to content

User:Krik~enwiki/mp

From Wikipedia, the free encyclopedia


Welcome to Wikipedia! We are building an open-content encyclopedia in many languages. In the English version, started in January 2001, we are now working on 6,969,083 articles. Learn how to edit pages, experiment in the sandbox, and visit our Community Portal to find out how you can participate in the development of Wikipedia.

Today's featured article

The Sun, viewed through a clear solar filter
The Sun, viewed through a clear solar filter

The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating energy from its surface mainly as light and infrared radiation. It is a G-type main-sequence star (G2V), informally called a yellow dwarf, though its light is actually white. It formed about 4.6 billion years ago and is by far the most important source of energy for life on Earth. From Earth the Sun is 1 astronomical unit (1.496×108 km) or about 8 light-minutes away. Its diameter is about 1,391,400 km (864,600 mi), 109 times that of Earth. Its mass is about 330,000 times that of Earth, making up about 99.86% of the total mass of the Solar System. Every second, the Sun fuses about 600 billion kilograms (kg) of hydrogen into helium and converts 4 billion kg of matter into energy. Venerated in many cultures, it is a central subject for astronomical research since antiquity. (This article is part of a featured topic: Solar System.)

Recently featured:

Selected anniversaries

March 20: Nowruz (2025)
Chemical structure of zidovudine
Chemical structure of zidovudine
More anniversaries:

In the news

Nightclub fire damage
Nightclub fire damage

Did you know...

Loudon depicted as a "human battering ram"
Loudon depicted as a "human battering ram"

Browse Wikipedia by category

Animation  – Celebrities  – Dance  – Entertainers  – Festivals – Games – Hobbies – Humour – Music – Parties – Radio – Television – Toys

Africa – Antarctica – Asia – Australia – Europe – North America – Oceania – South America
Cities – Climate – Countries – Landforms – Maps – Parks – Subterranea – Towns

Education – Family – Food and drink – Health – Home – People

Wikipedia in other languages

Wikipedia's sister projects

Wikipedia is written by volunteer editors and hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other volunteer projects:

If you find Wikipedia or its sister projects useful, please consider making a donation. Donations are used primarily for purchasing computer equipment and launching new projects.