The Sailing of a Humpback Whale and Display of its Tail in Juneau, Alaska, United States of America
The humpback whale is a species of baleen whale. One of the larger rorqual species, adults range in length from 12-16 m (39-52 ft) and weigh about 36, 000 kg (79, 000 lb). The humpback has a distinctive body shape, with long pectoral fins and a knobbly head. It is known for breaching and other distinctive surface behaviors, making it popular with whale watchers.
© :: Artie | Photography ::
Eyelash mite tails, SEM
Eyelash mite tails. Coloured scanning electron micrograph (SEM) of the tails (pink) of three eyelash, or follicle, mites (Demodex folliculorum), protruding from a human hair follicle. The hair shaft (upper right) is also seen. These harmless parasites infest follicles (depressions in the skin which contain the roots of hairs) around the eyelids, nose and in the ear canals of humans. One follicle may contain up to 25 growing mites. They feed on oily secretions from the skin's sebaceous glands, as well as dead skin cells. Infestation is usually symptomless, but, in some individuals, allergic reactions to the mites can cause hair loss and acne. Magnification: x250 at 6x7cm size.
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Donatis Comet of 1858, artwork
Comet Donati, or Donati's Comet, formally designated C/1858 L1 and 1858 VI, was a comet named after the Italian astronomer Giovanni Battista Donati who first observed it on June 2, 1858. The comet is considered a non-periodic comet. After the Great Comet of 1811, it was the most brilliant comet that appeared in the 19th century. It was also the first comet to be photographed. It was nearest the Earth on October 10, 1858 and is expected to return in 39th century.Abraham Lincoln, then a candidate for a seat in the U.S. Senate, sat up on the porch of his hotel in Jonesboro, Illinois to see "Donti's Comet" on September 14, 1858, the night before the third of his historic debates with Stephen Douglas. Donati's Comet appears as a streak and star in the early evening sky of a painting by William Dyce, A Recollection of October 5th, 1858.
© Detlev van Ravenswaay