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Iga Świątek and Carlos Alcaraz
Iga Świątek and Carlos Alcaraz
On this day

June 18: Autistic Pride Day

Cadaver Tomb of René of Chalon
Cadaver Tomb of René of Chalon
More anniversaries:
From today's featured article
Planets of the Solar System
Planets of the Solar System

A planet is a large, rounded astronomical body that is neither a star nor a stellar remnant. The Solar System has eight (pictured): four terrestrial planets, Mercury, Venus, Earth and Mars; and four giant planets, Jupiter, Saturn, Uranus and Neptune. The term "planet" at first included the Sun, Moon and the five naked-eye planets that move across the background of the stars; they were seen as having associations with the gods. Copernicus theorized the Earth was a planet and, like the others, orbited the Sun. "Planet" came to include many objects, such as moons, within and beyond the Solar System. The International Astronomical Union in 2006 defined a planet in the Solar System to have cleared its neighborhood of other bodies, and that extrasolar planets should orbit stars and not be large enough to support deuterium fusion. Many planetary scientists, though, still apply the word "planet" more broadly, including dwarf planets, planetary-mass moons, rogue planets and brown dwarfs. ( Full article...)

Did you know …
The Immaculate Conception of Los Venerables by Murillo
The Immaculate Conception of Los Venerables by Murillo
that The Immaculate Conception of Los Venerables (pictured) is also called The Immaculate Conception of Soult after Jean-de-Dieu Soult, who looted it from the Hospital de los Venerables in 1813?
that Molniya orbits are used by Russian and American military satellites?
that John Wrightson, a pioneer in agricultural education, was in 1890 reputedly the first British surfer?
that there was a seven-year delay between the release of the first and second issues of the comic book Captain America: White?
that Cameroonian singer Lady Ponce advertised that her wedding would take place at 3:30 p.m., then held it at 9:00 a.m. to avoid paparazzi?
that when the English army invaded France in 1346 they burnt a 40-mile-wide (64 km) swath of destruction to within 2 miles (3 km) of Paris?


Today's featured picture
Copper sunbird

The copper sunbird (Cinnyris cupreus) is a species of passerine bird in the family Nectariniidae. It is native to tropical Africa, its range extending from Senegal and Guinea in the west to South Sudan and Kenya in the east, and southwards to Angola, Zambia, Zimbabwe and Mozambique. It feeds on nectar that it extracts from selected flowers, such as Calliandra spp., Leonotis leonurus, Syzygium spp., and Senegalia polyacantha. It also takes fruits, spiders and insects, some of which are caught while in flight. This female copper sunbird of the subspecies C. c. cupreus was photographed in a Persian silk tree in Kakum National Park, Ghana.

Photograph credit: Charles J. Sharp

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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:

From Wikipedia, the free encyclopedia
 
Welcome to  Wikipedia,
Introduction •  Help •  Contact
In the news
Iga Świątek and Carlos Alcaraz
Iga Świątek and Carlos Alcaraz
On this day

June 18: Autistic Pride Day

Cadaver Tomb of René of Chalon
Cadaver Tomb of René of Chalon
More anniversaries:
From today's featured article
Planets of the Solar System
Planets of the Solar System

A planet is a large, rounded astronomical body that is neither a star nor a stellar remnant. The Solar System has eight (pictured): four terrestrial planets, Mercury, Venus, Earth and Mars; and four giant planets, Jupiter, Saturn, Uranus and Neptune. The term "planet" at first included the Sun, Moon and the five naked-eye planets that move across the background of the stars; they were seen as having associations with the gods. Copernicus theorized the Earth was a planet and, like the others, orbited the Sun. "Planet" came to include many objects, such as moons, within and beyond the Solar System. The International Astronomical Union in 2006 defined a planet in the Solar System to have cleared its neighborhood of other bodies, and that extrasolar planets should orbit stars and not be large enough to support deuterium fusion. Many planetary scientists, though, still apply the word "planet" more broadly, including dwarf planets, planetary-mass moons, rogue planets and brown dwarfs. ( Full article...)

Did you know …
The Immaculate Conception of Los Venerables by Murillo
The Immaculate Conception of Los Venerables by Murillo
that The Immaculate Conception of Los Venerables (pictured) is also called The Immaculate Conception of Soult after Jean-de-Dieu Soult, who looted it from the Hospital de los Venerables in 1813?
that Molniya orbits are used by Russian and American military satellites?
that John Wrightson, a pioneer in agricultural education, was in 1890 reputedly the first British surfer?
that there was a seven-year delay between the release of the first and second issues of the comic book Captain America: White?
that Cameroonian singer Lady Ponce advertised that her wedding would take place at 3:30 p.m., then held it at 9:00 a.m. to avoid paparazzi?
that when the English army invaded France in 1346 they burnt a 40-mile-wide (64 km) swath of destruction to within 2 miles (3 km) of Paris?


Today's featured picture
Copper sunbird

The copper sunbird (Cinnyris cupreus) is a species of passerine bird in the family Nectariniidae. It is native to tropical Africa, its range extending from Senegal and Guinea in the west to South Sudan and Kenya in the east, and southwards to Angola, Zambia, Zimbabwe and Mozambique. It feeds on nectar that it extracts from selected flowers, such as Calliandra spp., Leonotis leonurus, Syzygium spp., and Senegalia polyacantha. It also takes fruits, spiders and insects, some of which are caught while in flight. This female copper sunbird of the subspecies C. c. cupreus was photographed in a Persian silk tree in Kakum National Park, Ghana.

Photograph credit: Charles J. Sharp

Subject matter portals
Other areas of Wikipedia
Bulletin board, projects, resources and activities covering a wide range of Wikipedia areas.
Serving as virtual librarians, Wikipedia volunteers tackle your questions on a wide range of subjects.
For discussions about Wikipedia itself, including areas for technical issues and policies.
Announcements, updates, articles and press releases on Wikipedia and the Wikimedia Foundation.
Ask questions about using Wikipedia.
For Wikipedia-related communication in languages other than English.

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:


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