You can obtain a copy of the Code, or contact the Council, at PH: (01) 6489130, Lo-Call 1890 208 080 or email: note that TheJournal.ie uses cookies to improve your experience and to provide services and advertising. TheJournal.ie supports the work of the Press Council of Ireland and the Office of the Press Ombudsman, and our staff operate within the Code of Practice. “In the aerospace industry it has always been a topic of conversation because Nasa and the US military were always awarding their people astronaut wings when they got above 80km,” Moore told The Journal.
He said people are weightless at 80-90km above sea level, the sky is fully black and you can see the curvature of the Earth.
However, the 100km figure is debated and many experts believe the boundary is closer than this.ĭavid Moore of Astronomy Ireland said the work of US astronomer Jonathan McDowell and others indicate that the limit “probably is closer to 80km” above sea level. The FAI stewards definitions for spaceflight. There is no universal acceptance for where space begins but the World Air Sports Federation (FAI) uses the Karman line, which sets the boundary at 100km/62 miles above sea level. What do most experts say about the edge of space? However, there is no set limit for the edge of space and experts differ on where the boundary is established. Turner included a more technical definition of the edge of space: "However, a reasonable and popular is that it is the minimum altitude at which an object moving with sufficient velocity could complete one circular orbit of the Earth without the benefit of further propulsion before the drag force associated with the very thin atmosphere at that altitude would cause its orbit to decay and the object to plunge back to Earth.EARLIER TODAY, THE wealthiest man on the planet Jeff Bezos flew to and from the edge of space in his own rocket.īezos’ company Blue Origin flew a rocket just above the Karman line – a commonly referenced definition for the boundary between Earth and space.Įarlier this month, billionaire Richard Branson also flew to the edge of space – but his rocket strayed just below this line. The Fédération Aéronautique Internationale considered moving the line, perhaps dropping it as low as 80 kilometers (in this scenario, Bezos would still be an astronaut.) And Turner said the line could eventually be defined as high as 150 km, or about 93 miles (in this scenario, Bezos would not be an astronaut.)
Turner, professor of astrophysical sciences at Princeton University, said via email. "I am reasonably certain there is no single compelling definition for 'the edge of space,'" Edwin L.
But Prinja and other experts said that imaginary boundary wasn't precise - and may change in the future.
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