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Prochlorococcus, an influential marine cyanobacterium which produces much of the world's oxygen. Cyanobacteria are globally widespread photosynthetic prokaryotes and are major contributors to global biogeochemical cycles. [ 25] They are the only oxygenic photosynthetic prokaryotes, and prosper in diverse and extreme habitats. [ 26]
File: Henri Matisse, 1907, Nature morte bleue (Blue Still Life), oil on canvas, 89.5 x 116.8 cm, The Barnes Foundation.jpg
Cyanotype. The cyanotype (from Ancient Greek: κυάνεος, kyáneos 'dark blue' and τύπος, týpos 'mark, impression, type') is a slow-reacting, economical photographic printing formulation sensitive to a limited near ultraviolet and blue light spectrum, the range 300 nm to 400 nm known as UVA radiation. [ 1]
Most to the point, a "blue bird of happiness" features in ancient Lorraine folklore. In 1886, Catulle Mendès published Les oiseaux bleus ("the blue birds"), a story bundle inspired by these traditional tales. In 1892, Marcel Schwob, at the time secretary to Mendès, published the collection Le roi au masque d'or, which included the story "Le ...
A colorful rainbow and ring-billed gull. Rainbows can be observed whenever there are water drops in the air and sunlight shining from behind the observer at a low altitude angle. Because of this, rainbows are usually seen in the western sky during the morning and in the eastern sky during the early evening.
The combination of a super moon and blue moon is rare. The full moon’s peak took place on Monday afternoon, at 2:26 p.m. EDT, but it’ll be visible until early Wednesday morning.
Beta Pictoris with its planet Beta Pictoris b, the light-blue dot off-center, as seen in infrared. It combines two images, the inner disc is at 3.6 μm. Astronomers observe objects in the infrared portion of the electromagnetic spectrum using optical components, including mirrors, lenses and solid state digital detectors.
A natural phenomenon is an observable event which is not man-made. Examples include: sunrise, weather, fog, thunder, tornadoes; biological processes, decomposition, germination; physical processes, wave propagation, erosion; tidal flow, and natural disasters such as electromagnetic pulses, volcanic eruptions, hurricanes and earthquakes. [ 1][ 2]