A NASA Blog by Ron Garan relating a fabulous description of what it's like to descend from the ISS, through the seering heat of Earth's protective atmosphere, in a Soyuz Capsule.
 Ron Garan:
About two weeks before my return to Earth, I had a videoconference  from the International Space Station with astronaut Scott Kelly who told  me about his experience plunging over Niagara Falls in a burning barrel  six months before. 
He was actually describing what his own ride home  from the ISS on a Soyuz spacecraft was like. Now that I’ve taken the  same trip, I can tell you that it was as advertised, and more.
Travel Day
I spent undocking day completing a biological study and stowing it  onboard the Soyuz for return to Earth, packing cargo, taking some last  minute pictures of our beautiful planet from the space station Cupola,  and Tweeting pictures I took on my last full day in space. 
Following a brief goodbye to Mike Fossum, Satoshi Furukawa and Sergei  Volkov, who remain onboard the space station, Sasha, Andrey and I  hurried into our Soyuz spacecraft, closed the hatch and started  preparing for undocking. 
Once the hatch was closed, I put on special garments worn under my  spacesuit to help counteract the negative effects of the g-forces we  would encounter upon re-entry into Earth’s atmosphere. 
Sasha and Andrey  also dressed in their spacesuits, and then we all strapped into the same  seats we occupied when we launched from the Baikonur Cosmodrome in  Kazakhstan on April 5, 2011. Andrey was on the left, Sasha in the  middle, and I sat on the right. 
Undocking
As the hooks securing our spacecraft released, springs pushed us  slowly away from the space station. As we backed away, I took in my last  views of the amazing orbital complex that we called home for five and a  half months. I strained for a last glimpse of the outboard edge of the  space station’s massive solar arrays through the window next to my seat.
We made a lap and a half around the Earth before the spacecraft  fishtailed to point backwards, just as the moon was setting west of  South America. Then, moments before passing the southern tip of the  continent, I watched an orbital sunrise one last time. We then fired the  main engines for about four and a half minutes, enough to slow us down  for re-entry into Earth’s atmosphere. 
The next big event during our return to Earth was the separation of  our Soyuz spacecraft into three separate parts: the orbital  compartment, the propulsion compartment and the descent capsule, the  only part that would survive the transition through the atmosphere.  Separation occurred with a small explosion followed by debris flying  everywhere out my window!
 Read More of this wild ride on Ron Garan's Blog


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