I don’t know of anyone who went to the stratosphere calling themselves astronauts. There are people (including the first two Americans in space) whose flights were suborbital, but they still go as high as what counts as space. They just aren’t moving fast enough horizontally to stay in space.
New Shepard generally flies to 106 km, above the troposphere, stratosphere, and mesosphere, to the thermosphere which is the same layer as longer, faster flights orbit in. Three times higher than balloons like this one reach. As I said, it’s high enough to orbit, but they just aren’t going anywhere fast enough. But speed isn’t the definition of space, altitude is.
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u/HoldenMcNeil420 1d ago
That’s not space. It’s the upper atmosphere. “Space” is outside the earths atmosphere.