You’re going where?: A look at where Earth ends and space begins

As more people, probes, cameras and countries head ‘into space’, see how far they must travel for that to hold true - and other lines they cross along the way.

They call it the final frontier, but where exactly does Earth end and space begin?

As more people, probes, cameras and countries head “into space”, what barriers must they breach in order for that phrase to hold true?

Eventually, Google Maps may jot all this down for the tourists, but for now, here goes. The most widely accepted boundary between Earth and space is the Karman line, named after the Hungarian physicist Theodore von Karman (1881-1963).

It’s an imagined boundary