false colour imaging

Space Alphabet !

(The info is under the  pics, but you can ignore them for the sake of beauty, for a moment.) 

A - Utah’s Green River doubling back on itsels a feature known as Bowknot Bend, taken from the International Space Station

B - the Arkansas River and the Holla Bend Wildlife Refuge. In the winter, it is common for the refuge to host 100,000 ducks and geese at once

C - an artificial island at the southern end of Bahrain Island. The beach sand on tropical islands is mostly made up of calcium carbonate from the shells and skeletons of marine organisms

D - the Enhanced Thematic Mapper on Landsat 7 acquired this image of Akimiski Island in James Bay

E - a phytoplankton bloom off the coast of New Zealand, taken by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite

F - the Operational Land Imager (OLI) on Landsat 8 acquired this false-colour image of valleys and snow-covered mountain ranges in southeastern Tibet. Firn is a granular type of snow often found on the surface of a glacier before it has been compressed into ice

G - Pinaki Island, a small atoll of the Tuamotu group in French Polynesia

H - rivers running through colourful ridges in southwestern Kyrgyzstan, taken by the Operational Land Imager on Landsat 8

I - the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this image of the Andaman Islands, which form an archipelago in the Bay of Bengal between India, to the west. The thin, bright rings surrounding several of the islands are coral reefs that were lifted up by a massive earthquake near Sumatra in 2004

J - Trunk Reef near Townsville, Australia, taken by the Operational Land Imager

K - glaciers at the Sirmilik National Park Pond Inlet in Mittimatalik, Canada

L - the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua satellite, captured this image of snow across the northeastern United States

M - the Operational Land Imager (OLI) on Landsat 8 captured this image of glaciers in the Tian Shan mountains in northeastern Kyrgyzstan. The trail of brown sediment in the middle of the uppermost glacier is a medial moraine, a term glaciologists use to describe sediment that accumulates in the middle of merging glaciers

N - the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite, captured this image of ship tracks over the Pacific. Ship emissions contain small particles that cause the clouds to form

O - the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on the Terra satellite, captured this image of Tenoumer meteorite crater in Mauritania. The meteorite struck Earth between 10,000 and 30,000 years ago

P - the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) sensor on the Terra satellite, captured this false-color image of the Mackenzie River Delta in Canada

Q - the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite, acquired this image of Lonar Crater in India. Shocked quartz minerals with an unusual structure that can only form under intense pressure, offering a clue that the lake was formed by a large meteorite

R - the Operational Land Imager (OLI) on Landsat 8, captured this image of Lago Menendez in Argentina

S - the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite, acquired this image of clouds swirling over the Atlantic Ocean

T - the Operational Land Imager (OLI) on Landsat 8, captured this image of development along two roads in the United Arab Emirates

U - the Ikonos satellite captured this image of Gooseneck State Park in Utah

V - the Operational Land Imager (OLI) on Landsat 8, acquired this image of ash on the snow around Shiveluch- one of the largest and most active volcanoes on Russia’s Kamchatka Peninsula

W - the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, captured this image of dust blowing over the Red Sea

X - the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite, captured this false-colour image of the northwest corner of Leidy Glacier in Greenland

Y - the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s. Terra satellite captured this false-colour image of the Ugab River in Namibia

Z - the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite, captured this image of wildfire smoke over Canada 

Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. Science writer for the Nasa Earth Observatory, Adam Voiland, said: “A few years ago, while working on a story about wildfires, a V appeared to me in a satellite image of a smoke plume over Canada. That image made me wonder: could I track down all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography?” "With the help of readers and colleagues, I started to collect images of ephemeral features like clouds, phytoplankton blooms, and dust clouds that formed shapes reminiscent of letters. Some letters, like O and C, were easy to find. Others-A, B, and R-were maddeningly difficult. Note that the A above is cursive. And if you can find a better example of any letter (in NASA imagery), send us an email with the date, latitude, and longitude.“ 

Adam Voiland explains that when he finally tracked down all the letters and it was time write captions, he had just become a new dad & deep into a Dr. Seuss reading phase with my son. 

"The Seuss-inspired ABC gallery above is the result. To add some education to the fun.”

3

William Herschel and a Planet named GEORGE

Today is the birthday of William Herschel (15 November 1738 – 25 August 1822) a German born British astronomer known today as the discoverer of the planet Uranus in March of 1781.  He also discovered two of Uranus’s moons, Titania and Oberon and two moons of Saturn.  He is also credited with the discovery of Infrared radiation, and to honor that the image above of Uranus is a 1998 false-colour near-infrared image of the planet showing cloud bands, rings, and moons obtained by the Hubble Space Telescope‘s NICMOS camera.

Herschel named his discovery George, oddly enough, to commemorate his new patron, King George III.  At the time he said this:  

In the fabulous ages of ancient times the appellations of Mercury, Venus, Mars, Jupiter and Saturn were given to the Planets, as being the names of their principal heroes and divinities. In the present more philosophical era it would hardly be allowable to have recourse to the same method and call it Juno, Pallas, Apollo or Minerva, for a name to our new heavenly body. The first consideration of any particular event, or remarkable incident, seems to be its chronology: if in any future age it should be asked, when this last-found Planet was discovered? It would be a very satisfactory answer to say, ‘In the reign of King George the Third’.

Few astronomers outside of England liked the name, however, and astronomers began proposing alternatives almost immediately.  German astronomer Johann Elert Bode called it Uranus  (Ancient Greek: Οὐρανός) after the Ancient Greek god of the sky, the logic being that as Saturn was the father of Jupiter, the new planet should be the father of Saturn.  It wasn’t until the middle of the next century that atlases dropped Herschel’s name and adopted Uranus.

All images in the public domain.