Karman line

Why in news?

• Karman line was in news due to reports about the planned journey of Amazon Boss Jeff Bezos into space.

About the line:

• The Karman line is an attempt to define a boundary between Earth's atmosphere and outer space, which is important for legal and regulatory purposes: aircraft and spacecraft fall under different jurisdictions and are subject to different treaties.
• The Fédération Aéronautique Internationale (FAI), an international standard-setting and record-keeping body for aeronautics and astronautics, defines the Karman line as the altitude of 100 kilometres above Earth's mean sea level.
• Not all organizations recognize this definition. The US Air Force and NASA define the boundary as 50 miles (80 km) above sea level.
• International law does not define the edge of space, or the limit of national airspace.
• The Karman line is named after Theodore von Karman (1881–1963), a Hungarian American engineer and physicist who was active in aeronautics and astronautics.
• He was the first person to determine the altitude at which the atmosphere becomes too thin to support aeronautical flight, which Kármán calculated as 83.6 km.
•  A vehicle above this altitude would have to travel faster than orbital velocity to derive sufficient aerodynamic lift to support itself.
• The line is approximately at the turbopause, above which atmospheric gases are not well-mixed.

Prelims Question

” Karman line”, recently in news is related to the field of:
(a)Mountaineering
(b)Maritime Borders
(c)Space exploration
(d)None of the above 

Answer to the Prelims Question