The Edge of Space: Scientists Track Transition to Space

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SUMMARY

Scientists at the University of Calgary have developed a groundbreaking instrument capable of tracking the transition from Earth's atmosphere to space, confirming that space begins at an altitude of 118 km. This research, published in the Journal of Geophysical Research, reveals the dynamics of atmospheric winds versus charged particle flows in space, which can exceed speeds of 1000 km/hr. The findings challenge previous notions, such as those surrounding the X-15's reach into outer space.

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  • Knowledge of instrumentation used in atmospheric research
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  • Research the design and functionality of atmospheric transition instruments
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Atmospheric scientists, space physicists, aerospace engineers, and educators interested in the scientific definitions and measurements related to the boundary of space.

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http://www.sciencedaily.com/releases/2009/04/090409142301.htm

Where does space begin? Scientists at the University of Calgary have created a new instrument that is able to track the transition between the relatively gentle winds of Earth's atmosphere and the more violent flows of charged particles in space – flows that can reach speeds well over 1000 km/hr. And they have accomplished this in unprecedented detail.
 
Earth sciences news on Phys.org
With that data, U of C scientists confirmed that space begins 118 km above Earth and the results were published this week in the Journal of Geophysical Research.


So, the X-15 never really make it to outer space.
 

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