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Theory:

Work of Indians at NASA:
People of Indian ancestry work for NASA in the United States and have made significant contributions to the organisation.
A person who travels in a spacecraft is known as an Astronaut. They have been trained to pilot and serve as a crew member of a spacecraft.
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Astronaut
Indian Astronauts:
Kalpana Chawla:
 
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Kalpana Chawla
 
The First Indian Woman Astronaut, Kalpana Chawla, was born on \(17\ March,\ 1962\), in Karnal, Haryana. She pursued her Bachelor degree in Aeronautical Engineering from Chandigarh and obtained a Master's degree in Aerospace Engineering from the University of Texas. She pursued her PhD in Aerospace Engineering from the University of Colorado and began her career at NASA in \(1988\). She was the second Indian to fly in space. In \(1997\), she became a part of Colombia Shuttle Mission.
 
Unfortunately, on \(1 February,\ 2003\), she was one of the seven astronauts who lost their lives in Space Shuttle Columbia disaster. It was her second mission on the Colombia Shuttle Mission.
Kalpana Chawla has spent more than \(372\) hours in space by travelling over \(10.4\ million\ miles\) in \(252\) orbits of the earth.
 
Sunitha Williams:
 
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Sunita Williams
 
Born on \(September\ 19,\ 1965\), in USA, Sunita Williams started her career as an astronaut in \(1998\). She completed two trips to the International Space Station. She also made a record of the longest space-walking time by a female astronaut in \(2012\), with a total of \(7\) space-walks in \(50\ hour\) \(40\ minute\). She is one of the crew members of NASA’s Manned Mars Mission.
 
Rakesh Sharma:
 
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Rakesh Sharma
 
Rakesh Sharma was the first Indian to enter into the space on \(April\ 2,\ 1984\). He was an Indian pilot who got selected as a ‘Cosmonaut’ in a joint space program between India and Soviet Russia. Cosmonauts are the people trained by the Russian space agency.
Reference:
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https://cdn2.picryl.com/photo/2012/02/22/jsc2012e096604-ed469b-1024.jpg
https://live.staticflickr.com/3270/3084462319_01dc8a453b_b.jpg
https://www.publicdomainpictures.net/pictures/180000/nahled/astronaut-in-space.jpg