Sunday, January 14, 2018

This Day In History 14 January 2018- Challenger disaster


    At 11:38 a.m. EST, on January 28, 1986, the space shuttle Challenger lifts off from Cape Canaveral, Florida, and Christa McAuliffe is on her way to becoming the first ordinary U.S. civilian to travel into space. McAuliffe, a 37-year-old high school social studies teacher from New Hampshire, won a competition that earned her a place among the seven-member crew of the Challenger. She underwent months of shuttle training but then, beginning January 23, was forced to wait six long days as the Challenger‘s launch countdown was repeatedly delayed because of weather and technical problems. Finally, on January 28, the shuttle lifted off.

   Seventy-three seconds later, hundreds on the ground, including Christa’s family, stared in disbelief as the shuttle broke up in a forking plume of smoke and fire. Millions more watched the wrenching tragedy unfold on live television. There were no survivors.

   In 1976, the National Aeronautics and Space Administration (NASA) unveiled the world’s first reusable manned spacecraft, the Enterprise. Five years later, space flights of the shuttle began when Columbia traveled into space on a 54-hour mission. Launched by two solid-rocket boosters and an external tank, only the aircraft-like shuttle entered into orbit around Earth. When the mission was completed, the shuttle fired engines to reduce speed and, after descending through the atmosphere, landed like a glider. Early shuttles took satellite equipment into space and carried out various scientific experiments. The Challenger disaster was the first major shuttle accident.

  In the aftermath of the disaster, President Ronald Reagan appointed a special commission to determine what went wrong with Challenger and to develop future corrective measures. The presidential commission was headed by former secretary of state William Rogers, and included former astronaut Neil Armstrong and former test pilot Chuck Yeager. The investigation determined that the disaster was caused by the failure of an “O-ring” seal in one of the two solid-fuel rockets. The elastic O-ring did not respond as expected because of the cold temperature at launch time, which began a chain of events that resulted in the massive loss. As a result, NASA did not send astronauts into space for more than two years as it redesigned a number of features of the space shuttle.

   In September 1988, space shuttle flights resumed with the successful launching of the Discovery. Since then, the space shuttle has carried out numerous important missions, such as the repair and maintenance of the Hubble Space Telescope and the construction of the International Space Station.

  On February 1, 2003, a second space-shuttle disaster rocked the United States when Columbia disintegrated upon reentry of the Earth’s atmosphere. All aboard were killed. Despite fears that the problems that downed Columbia had not been satisfactorily addressed, space-shuttle flights resumed on July 26, 2005, when Discovery was again put into orbit.

Also, On this  Day 1777, British plan to isolate New England


   John Burgoyne, poet, playwright and British general, submits an ill-fated plan to the British government to isolate New England from the other colonies on this day in 1777.

  Burgoyne’s plan revolved around an invasion of 8,000 British troops from Canada, who would move southward through New York by way of Lake Champlain and the Mohawk River, taking the Americans by surprise. General Burgoyne believed he and his troops could then take control of the Hudson River and isolate New England from the other colonies, freeing British General William Howe to attack Philadelphia.

  General Burgoyne’s plan went into effect during the summer of 1777 and was initially a success—the British captured Fort Ticonderoga on June 2, 1777. However, the early success failed to lead to victory, as Burgoyne overextended his supply chain, which stretched in a long, narrow strip from the northern tip of Lake Champlain south to the northern curve of the Hudson River at Fort Edward, New York. As Burgoyne’s army marched south, Patriot militia circled north, cutting the British supply line.

   Burgoyne then suffered defeat in Bennington, Vermont, and bloody draws at Bemis Heights, New York. On October 17, 1777, a frustrated Burgoyne retreated 10 miles and surrendered his remaining 6,000 British forces to the Patriots at Saratoga. Upon hearing of the Patriot victory, France agreed to recognize the independence of the United States. It was, of course, France’s eventual support that enabled the Patriots’ ultimate victory. The defeat at Saratoga led to General Burgoyne’s downfall. He returned to England, where he faced severe criticism and soon retired from active service.


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