The eastern gray squirrel (Sciurus carolinensis) is a tree squirrel in the genus Sciurus, native to the eastern and midwestern United States, as well as to the southerly portions of the eastern provinces of Canada. A prolific and adaptable species, it has been introduced to and thrives in several regions of the western United States; it is also an invasive species in Britain, where it has spread across the country and largely displaced the native Eurasian red squirrel. The head and body can measure from 23 to 30 cm (9.1 to 11.8 in) and the tail from 19 to 25 cm (7.5 to 9.8 in) in length; its adult weight is between 400 and 600 g (14 and 21 oz). Like many members of the family Sciuridae, the eastern gray squirrel is a scatter-hoarder; it hoards food in numerous small caches for later recovery. In the United Kingdom and Canada, the species is simply referred to as the "grey squirrel".
This picture, taken in 2010, shows an eastern gray squirrel in Florida.Photograph credit: Tom Friedel
Founded in 1969 by Rei Kawakubo and established as a company in 1973, the brand's name is inspired by a line from Françoise Hardy's song "Tous les garçons et les filles". It gained popularity in Japan through the 1970s, before making its debut Paris show in 1981, where Kawakubo's heavy use of black, as well as distressed fabrics and unfinished seams, were viewed negatively by critics. Comme des Garçons produced many unusual styles through the 1980s and 1990s, many of which were disliked by experts, but nonetheless grew into a large commercially successful enterprise. The company has boutique stores in several countries, exhibits its main collections annually at the Paris Fashion Week, and also runs a line of perfumes.Photograph credit: Rhododendrites
Back Bay is an officially recognized neighborhood of Boston, built on reclaimed land in the Charles River basin. Construction began in 1859, as the demand for luxury housing exceeded the availability in the city at the time; the area was fully built by around 1900. Back Bay was planned by architect Arthur Gilman, influenced by Haussmann's renovation of Paris. It is noted for its rows of Victorian brownstone homes – considered one of the most preserved examples of 19th-century urban design in the United States – and numerous architecturally significant buildings, as well as cultural institutions, such as the Boston Public Library. Initially conceived as a residential-only area, commercial buildings were permitted from around 1890 and Back Bay now features many office buildings, including the John Hancock Tower, Boston's tallest skyscraper. It is also considered a fashionable shopping destination and is home to several major hotels. Today, along with neighboring Beacon Hill, it is one of Boston's two most expensive residential neighborhoods. In 1973, Back Bay was listed as a historic district on the National Register of Historic Places.
The harbour seal (Phoca vitulina), also known as the common seal, is a true seal in the genus Phoca, found along temperate and Arctic marine coastlines in the Northern Hemisphere. The most widely distributed species of pinniped, harbour seals are found in coastal waters of the northern Atlantic and Pacific Oceans and the Baltic and North Seas. They are brown, silvery white, tan or grey, with distinctive V-shaped nostrils. An adult can attain a length of 1.85 m (6.1 ft) and a mass of 168 kg (370 lb). Blubber under the seal's skin helps to maintain body temperature. Harbour seals stick to familiar resting spots or haul-out sites, generally rocky areas, where they are protected from adverse weather conditions and predation, near a foraging area. Males may fight over mates underwater or on land. After a nine-month gestation, females bear a single pup, for which they care alone. Pups can weigh up to 16 kg (35 lb) and are able to swim and dive within hours of birth. They develop quickly on their mothers' fat-rich milk and are weaned after four to six weeks. The global population of harbour seals is 350,000 to 500,000, but subspecies in certain habitats are threatened.
This picture, taken in 2015, shows a harbour seal off the island of Lismore in Scotland.Photograph credit: Charles J. Sharp
Frida Kahlo (6 July 1907 – 13 July 1954) was a Mexican artist who created many paintings, self-portraits and other works inspired by the nature and artifacts of Mexico. She often featured her own body in her paintings, presenting it in varying states and disguises: as wounded, broken, as a child or clothed in different outfits, such as Tehuana attire, a man's suit or European dress. Kahlo was heavily influenced by Mexicanidad, a romantic nationalism that claimed to resist the "mindset of cultural inferiority" created by colonialism by placing special importance on Mexican indigenous cultures and Aztec mythology. Her paintings also often feature imagery with roots growing out of her body; she developed a complex iconography, extensively employing pre-Columbian and Christian symbols and mythology in her paintings. In most of her self-portraits, she depicts her face as mask-like, but surrounded by visual cues which allow the viewer to decipher deeper meanings from the work.
This picture of Kahlo was taken by American photographer Toni Frissell, as part of a 1937 photo shoot for Vogue magazine entitled "Señoras of Mexico". She is depicted outdoors, seated next to an agave plant. The photograph is in the collection of the Library of Congress in Washington, D.C.Photograph credit: Toni Frissell; restored by Adam Cuerden
Gonepteryx rhamni, also known as the common brimstone, is a butterfly in the family Pieridae. It lives throughout the Palearctic zone and is commonly found across Europe, Asia and North Africa. The butterfly relies on two species of buckthorn as hosts for its eggs and larvae, which influences its geographic range and distribution as these plants are commonly found in wetlands. After spending the summer feeding, adults travel to woodland areas to spend seven months hibernating. In spring when their host plants have developed, they return to the wetlands to breed and lay eggs. Both the larval and adult forms of the species have protective coloration and behaviour that decreases their chances of being recognised and preyed upon. The adult common brimstone has sexual dichromism in its wing coloration and iridescence; the male (pictured) has yellow wings and iridescence, while females have greenish-white wings and are not iridescent.Photograph credit: Charles J. Sharp
Kombat (Russian for 'battalion commander') is a black-and-white photograph by Soviet photographer Max Alpert. It depicts a Soviet military officer, armed with a TT pistol, raising his unit for an attack during World War II. This work is regarded as one of the most iconic Soviet World War II photographs, yet neither the date nor the subject is known with certainty. According to the most widely accepted version, it depicts junior politruk Aleksei Gordeyevich Yeryomenko, minutes before his death on 12 July 1942, in Voroshilovgrad Oblast, now part of Ukraine. The photograph is in the archives of RIA Novosti, a Russian state-owned news agency.Photograph credit: Max Alpert
Wells Cathedral is an Anglican cathedral in Wells, Somerset, commenced around 1175; it is predominantly built in the Early English style. This interior view shows the Lady Chapel, which was begun by Thomas Witney, possibly around 1310. The chapel has an asymmetrical octagonal plan, resulting in a somewhat irregular vault (arched ceiling), which is one of the earliest lierne vaults in England. The main ribs are intersected by non-supporting lierne ribs, which form a star-shaped pattern at the apex. The window tracery is in the Reticulated Gothic style, with a pattern of repeated trefoils, giving a "reticulate" or net-like appearance. Four of the five contain fragments of medieval glass.Photograph credit: David Iliff
The clarinet is a family of woodwind musical instruments, consisting of a single-reed mouthpiece and a straight, cylindrical tube with an almost-cylindrical bore, ending in a flared bell. The instrument has its roots in the early single-reed instruments or hornpipes used in the ancient world. The invention of the modern clarinet is usually attributed to German instrument-maker Johann Christoph Denner, who developed it from a Baroque instrument called the chalumeau around 1700. The instrument became popular in orchestral pieces, including numerous compositions by Mozart; by the time of Beethoven (c. 1800–1820), the clarinet was a standard fixture in the orchestra. The clarinet family includes instruments in many different pitches, the most common of which are the soprano clarinets in B♭, A and C.
Rembrandt (15 July 1606 – 4 October 1669) was a Dutch draughtsman, painter and printmaker. An innovative and prolific master in three media, he is generally considered one of the greatest visual artists in the history of art and the most important in Dutch art history. Unlike most Dutch masters of the 17th century, Rembrandt's works depict a wide range of style and subject matter, from portraits and self-portraits to landscapes, genre scenes, allegorical and historical scenes, biblical and mythological themes, as well as animal studies. His contributions to art came in a period of great wealth and cultural achievement that historians call the Dutch Golden Age, when Dutch art (especially Dutch painting), although in many ways antithetical to the Baroque style that dominated Europe, was extremely prolific and innovative, giving rise to important new genres. Like many artists of the period, such as Johannes Vermeer, Rembrandt was also an avid art collector and dealer.
The Moon is the only natural satellite of Earth and the fifth largest moon in the Solar System. Owing to its synchronous rotation around Earth, the Moon always shows essentially the same face: its near side, which is marked by dark volcanic maria, as well as the bright ancient crustal highlands and the prominent impact craters. However, variations in the Moon's orbital speed due to its orbital eccentricity cause a libration of several degrees of longitude; the alignment of the Moon's orbital plane causes a similar libration in latitude. The Moon was first reached in September 1959 by the Soviet Union's unmanned Luna 2, followed by the first successful soft landing by Luna 9 in 1966. The United States Apollo program achieved the only manned lunar missions to date, including Apollo 8 in 1968, the first manned orbital mission, as well as Apollo 11, the first of six manned landings between 1969 and 1972.
This picture shows the near side of the Moon close to its greatest northern ecliptic latitude, so the southern craters are especially prominent. Tranquility Base, Apollo 11's landing site, is located near the mid-right in the photograph.Photograph credit: Gregory H. Revera
This picture, taken in 1969, shows Hamilton standing next to listings of the navigation software that she and her team at MIT produced for the Apollo project.Photograph credit: Draper Laboratory; restored by Adam Cuerden
This picture, taken in 1969, shows the Parkes Observatory's main 64-metre (210 ft) diameter radio telescope dish, around the time that it received transmissions from Apollo 11, with a crescent moon visible in the background. The photograph is part of CSIRO's ScienceImage archive.Photograph credit: CSIRO
The mission was planned to the minute, with the majority of the photographic tasks performed by Armstrong with a single Hasselblad camera. Most of the photographs taken on the Moon that include an astronaut are of Aldrin; there are only five images of Armstrong partly shown or reflected, as in this iconic photograph, with Armstrong and the lunar module reflected in Aldrin's helmet visor. "As the sequence of lunar operations evolved," Aldrin explained, "Neil had the camera most of the time [...] It wasn't until we were back on Earth and in the Lunar Receiving Laboratory looking over the pictures that we realized there were few pictures of Neil."Photograph credit: Neil Armstrong
After 34 years at NASA, Jackson had earned the most senior engineering title available. Realizing that she could not earn further promotions without becoming a supervisor, she accepted a demotion to become a manager of the Federal Women's Program in the NASA Office of Equal Opportunity Programs, as well as of the Affirmative Action Program. In this role, she worked to influence both the hiring and promotion of women in NASA's science, engineering and mathematics careers. She was portrayed by Janelle Monáe as a lead character in the 2016 film Hidden Figures. This picture, taken in 1980, shows Jackson working at NASA Langley.Photograph credit: Langley Research Center; restored by Adam Cuerden