"Most of the debris will burn up during re-entry ... leaving only a very small portion that may fall to the ground, which will potentially land on areas away from human activities or in the ocean."
Most of the experiments are not for space-related technologies, but will test conditions in space that may lead to technological, scientific, and medical breakthroughs.
The first time the 30-meter long Long March 5B was launched, it nearly landed on US soil.
The project started in 2014 with different teams in different fields, Elbasyouni said, adding he worked with other NASA engineers as chief engineer for more than four years
Their return marked the end of the first crew rotation mission to the station by the Crew Dragon spacecraft.
A rotating infant galaxy from the early days of the universe has been observed by astronomers for the first time, and it could considerably change the way in which we understand the universe.
The Endeavour capsule, also making its second flight, was launched into space on Friday atop a SpaceX Falcon 9 rocket from NASA's Kennedy Space Center in Florida.
"The technology we've developed is part of a value chain that will allow permanent bases to be established outside the limits of planet earth."
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