Paragraph 2
There is a
of contention over the record. NASA and the U.S.
regard the boundary between Earth's
and outer space as being 80 km above sea level. With this
, the record for humans in space was set at 20 in May 2023. However, the
definition of the edge of space is called the Karman Line. The International Aeronautical Federation puts this at an
of 100 km above sea
. The new record uses this
. The Karman
is used to differentiate between what constitutes an aircraft and a
.