Virgin Galactic, Richard Branson, made history on Thursday when he arrived at the first manned space flight.
With this feat, the company will come first manned commercial flight space.
- Why is the Virgin Galactic flight a milestone (and how much is missing so that we can become a tourist in space)
Your goal is to be able to carry tourists in those space flights with a $ 250,000 dollar ticket, which could take place in 2019.
The company claims that spacecraft SpaceShipTwo, occupied by two pilots in California, reached a height of 82.7 kilometers.
The vessel reached this height after it rose assembled to the second level from which it detached to continue raising the rate 2.9 times faster than the sound
SpaceShipTwo looks back at Spaceship Earth ? pic.twitter.com/ynr31mKzzf
– Virgin Galactic (@virgoalactic) 13 December 2018
"Any definition is arbitragearia"says Phil Stoocken, professor of planetary sciences at the Canadian Western University, BBC World.
But even if there is no consensus, there are some "Tradition", as instructed by Alex Ellery, Professor of Space Technology at the University of Carleton, Canada, will guide the response.
An invisible line
According to the US Oceanic and Atmospheric Administration. (NOAA, its abbreviation in English), "is not final law to define where the national airspace actually ends and where space begins. "
Root maximum height which has reached the airplane, is close to 37 kilometers.
Above, the atmosphere begins to turn too thin so that the traditional plane can fly. The air forms less push, so ships have to achieve much higher speeds.
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The satellites traveling around the globe are 200 km away, otherwise they did not last long.
Further down, the atmosphere is still too dense and "the effect pull"It would bring them back to the surface.
For longer-term tasks, satellites have to go far advanced. For example, the Hubble Space Telescope is almost 600 km high.
One of the permissible boundaries that mark the beginning of space is a call line of Karman, 100 km above sea level.
The Karman line is referred to as the International Aviation Organization (FAI), which establishes international standards for aviation Astronautics.
From this height you can no longer fly normally (with the aid of wings or propellers) and you have an orbit to not fall.
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"Most people claim that the Karman line would form a legal division in the trial," Ellery tells BBC Mundo.
"There are, however, no provisions."
Other facilities such as the US Air Force and NASA put the rod lower.
For them, space begins 80 km altitude, 20 km below the Karman line.
Pilots and other experts who are able to fly more than 80 kilometers away will be formally taken into account astronauts.
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In these circumstances, the Virgin Galactic Flight Plan meets a room.
"At some point between 50 km and 200 km there is an area where you can not fly (normally) and you can not get around (like satellite or spacecraft)," says Stooke.
"THE edge space is somewhere between these points. "
Crossing the border
Another way of defining what it means to gain space is to find out at what point atmosphere on earth.
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In that case, it should rise 10.000 km which some factors regard as exosphere.
According to this definition, as explained by NOOA, an international space station with a distance of 400 km or a space shuttle over 300 kilometers is not considered to be status.
"Essentially, being in space means a vacuum above the atmosphere, "says Jeffrey Hoffman, professor of Aeronautics at Massachusetts University of Technology.
"However, up to noon Orbital heights several hundred kilometers, is still a very thin atmosphere. "
Therefore, even though the experts agree on where to find regional boundary, engineers and pilots are still working hard to reach this limit … no matter how far they say.