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2015-07-10T17:04:14+05:30

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Sally Kristen Ride (May 26, 1951 – July 23, 2012) was an American physicist and astronaut. Born in Los Angeles, she joined NASA in 1978 and became the first American woman in space in 1983. She remains the youngest American astronaut to have traveled to space, having done so at the age of 32. After flying twice on the Orbiter Challenger, she left NASA in 1987. She worked for two years at Stanford University's Center for International Security and Arms Control, then at the University of California, San Diego as a professor of physics, primarily researching nonlinear optics and Thomson scattering. She served on the committees that investigated the Challenger and Columbia space shuttle disasters, the only person to participate on both.Ride died on July 23, 2012, at the age of 61, seventeen months after being diagnosed with pancreatic cancer. Following cremation, her ashes were interred next to her father at Woodlawn Cemetery, Santa Monica, California.

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2015-07-10T19:49:46+05:30

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Marie Curie is one of the most famous scientists that ever lived.She  was born Maria Sklodowska in Warsaw, Poland on November 7, 1867.Health and Financial concerns were not the only problems to plague the Curies as Marie wound up her thesis research. Hardship would soon follow Marie once again with her husband dying in an accident. Pierre's life ended tragically on April 19, 1906, when he slipped and fell in the street. His head was crushed under the wheel of a horse-drawn car. Marie took over his classes and continued her own research. It was the first time that a woman would hold an important university research position. She would work harder than ever and receive much prestige. She won the Nobel Prize again in 1911.  
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