Public Posts

Welcome to the Kudos 365 History Challenge. Test your knowledge and see how many you can answer.

Looking through these three windows on history reminds us that while the tools of civilization evolve, the human story continues to be driven by many of the same hopes, challenges, and ambitions that have shaped every generation. Continue reading 

Photograph of Louis Armstrong playing Trumpet by Harry Warnecke and Gus Schoenbaechler, 1947. Armstrong died on this day 55 years ago.

Harry Warnecke / Gus Schoenbaechler, Public domain, via Wikimedia Commons. View source.

Robert Louis Stevenson (1850-1894) Scottish novelist, poet, and travel writer. His most famous works are Treasure Island, Kidnapped, Strange Case of Dr Jekyll and Mr Hyde.

NASA Astronomy Picture of the Day:

What has happened to Saturn's moon Iapetus? Vast sections of this strange world are dark as coal, while others are as bright as snow. To help better understand this unusually tinted moon, in 2007 NASA directed the robotic Cassini spacecraft then orbiting Saturn to swoop within 2,000 kilometers. Pictured here, from about 75,000 kilometers out, is the hemisphere of Iapetus that is always trailing. A large impact crater seen in the south spans 500 kilometers and appears superposed on an older crater of similar size. The dark material is seen increasingly coating the easternmost part of Iapetus, darkening craters and highlands alike. A leading hypothesis is that the dark material is mostly a form of carbon-rich soil leftover from when relatively warm but dirty ice sublimates. An initial coating of this dark material may have been effectively painted on by the accretion of meteor-liberated debris from other moons. Jigsaw Moon: Astronomy Puzzle of the Day

Photographic art based on pastel chalks, taken in Dülmen, North Rhine-Westphalia, GermanyThe photo was taken using ICM technique and multiple exposure.

Dietmar Rabich, CC BY-SA 4.0, via Wikimedia Commons. View source.

NASA Astronomy Picture of the Day:

On July 4th, 1997, using its own array of fireworks, a parachute, and a cocoon of airbags, the Mars Pathfinder spacecraft bounced like a giant beach ball at least 15 times before it came to rest on the surface of Mars at 10:07 AM Pacific Daylight Time. After its then novel airbag-assisted landing sequence was completed, Pathfinder transmitted this color mosaic to mission operators on Earth. In the scene from another world, the Mars Sojourner robot rover is visible in the foreground, crouched on top of the unfolded Pathfinder. About the size of a large house cat, the six-wheeled, solar-powered Sojourner became the first successful Martian rover. Surrounding Pathfinder are deflated airbags and the rock-strewn terrain of the Ares Vallis floodplain. In the distance Martian hills appear against a dusty brownish sky. The Pathfinder lander was subsequently renamed the Carl Sagan Memorial Station.

The Jefferson Memorial in Washington, D.C. commemorates the third president of the United States, Thomas Jefferson (April 13, 1743 – July 4, 1826). Today marks the 200th anniversary of Jefferson's death as well as the 250th anniversary of the signing of the Declaration of Independence, drafted primarily by Jefferson.

King of Hearts, CC BY-SA 4.0, via Wikimedia Commons. View source.