Picture of the day for April 30, 2018

Zhavoronki are traditional Eastern Slavic cookies. Photographed in Shebekinsky District of Belgorod Oblast, Russia.. Learn more.

Picture of the day for April 29, 2018

Palm Springs International Airport, final approach on runway 13R. Learn more.

Picture of the day for April 24, 2018

The Spring path at the island of Mainau during the tulip blooming.. Learn more.

Picture of the day for April 23, 2018

Exemplar of brown pelican (Pelecanus occidentalis), Punta Pitt, San Cristóbal Island, Galápagos Islands, Ecuador.. Learn more.

Picture of the day for April 22, 2018

Panorama of the Imperial Academy of Arts building in Saint Petersburg, Russia.. Learn more.

Picture of the day for April 21, 2018

A port security boat assigned to Martime Expeditionary Squadron (MSRON) 1 patrols the waters near Kuwait Naval Base. MSRON-1 is deployed supporting maritime security operations and port security operations in the U.S. 5th Fleet area of responsibility.. Learn more.

Picture of the day for April 20, 2018

A tape head cleaner cassette made of clear hard plastic. The plastic is birefringent and demonstrates internal stress as coloured patterns (photoelasticity) when photographed using cross polarisation. The polarising light source (an LCD monitor) has been rotated such that the polarising filter on the lens is oppositely oriented and so cuts out all the direct light, leaving a black background.. Learn more.

Picture of the day for April 17, 2018

View of the Castle of Zafra, Campillo de Dueñas, Guadalajara, Spain. The castle was built in the late 12th or early 13th centuries on a sandstone outcrop and stands on the site of a former Visigothic and Moorish fortification that fell into Christian hands in 1129. It had considerable strategic importance as a virtually impregnable defensive work on the border between Christian and Muslim-ruled territory. The castle was never conquered and was successfully defended against the King of Castile in the 13th century. The successful completion of the Reconquista at the end of the 15th century ended its military significance.. Learn more.

Picture of the day for April 16, 2018

A MK-46 exercise torpedo is launched from the deck of Arleigh Burke-class guided-missile destroyer USS Mustin (DDG 89) during a torpedo launch exercise in Philippine Sea.. Learn more.

Picture of the day for April 15, 2018

Panorama of the Tobolsk Kremlin from the Cape Chukman. Tobolsk, Russia.. Learn more.

Picture of the day for April 14, 2018

Indosylvirana urbis, Urban Golden-backed Frog, is a species of frog known only in the southern Western Ghats in Kerala. Here it is resting comfortably in the pink colored boat-shaped bract of the Curcuma angustifolia (East Indian Arrowroot) flower.. Learn more.

Picture of the day for April 12, 2018

The Soyuz TMA-13 spacecraft, carrying Expedition 18 Commander Michael Fincke, Flight Engineer Yury V. Lonchakov and American spaceflight participant Richard Garriott, launched Sunday, October 12, 2008, from the Baikonur Cosmodrome in Kazakhstan. The three crew members docked with the International Space Station on October 14. Garriott returned to Earth on October 24 with two members of the Expedition 17 crew, while Fincke and Lonchakov remained on the station for six months.. Learn more.

Picture of the day for April 11, 2018

Overview of the courtyard of the Agha Bozorg mosque, a historical mosque in Kashan, Iran. The mosque, located in the center of the city, was built in the late 18th century by master-mimar Ustad Haj Sa'ban-ali. The mosque has of two large iwans, one in front of the mihrab and the other by the entrance and the courtyard in the middle.. Learn more.

Picture of the day for April 10, 2018

Eurasian lynx (Lynx lynx) in the Zoo of Madrid, Spain.. Learn more.

Picture of the day for April 9, 2018

Peugeot 208 T16 at Rally Serras de Fafe 2017. Learn more.

Picture of the day for April 8, 2018

The crenellated parapet on a bastion of Kyrenia Castle, Cyprus.. Learn more.

Picture of the day for April 7, 2018

The Bronze Horseman in Saint Petersburg, Russia.. Learn more.

Picture of the day for April 6, 2018

These well-preserved basalt columns are known as "Symphony of the Stones" and are located in the Garni Gorge, near Yerevan, capital city of Armenia. The columns are visible because they were carved out by the Goght River.. Learn more.

Picture of the day for April 4, 2018

Hochofenstraße in the Landschaftspark Duisburg-Nord in Duisburg, North Rhine-Westphalia, Germany. Learn more.

Picture of the day for April 3, 2018

Yellow-billed oxpeckers (Buphagus africanus africanus) perch on a zebra in Senegal. Tomorrow, April 4, is Independence Day in Senegal. Learn more.

Picture of the day for April 2, 2018

Office building of the LVM, Münster, North Rhine-Westphalia, Germany. Learn more.

Picture of the day for April 1, 2018

View of the arches in the interior of the Nasir-ol-Molk Mosque, also known as the Pink Mosque, which is a traditional mosque located in Shiraz district of Gowad-e-Arabān, Iran. The mosque was built from 1876 to 1888, by the order of Mirzā Hasan Ali (Nasir ol Molk), a Qajar ruler.. Learn more.