- #1
Blank_Stare
- 111
- 66
A few years ago, a Australian guy jumped from a platform that was attached to a weather balloon, from roughly 24 miles or so in the atmosphere. News articles claimed he jumped "From the edge of space".
https://en.wikipedia.org/wiki/Felix_Baumgartner
But did he?, I mean clearly 24 miles is an incredible feat, but, I have had conversations with people who tell me that the edge of space is more like 50 miles up.
I'm not trying to be funny, I really have been wondering.
I understand that the atmosphere just keeps getting thinner, until at some point the Earth's gravity can't keep the gasses from being blown off by the solar winds. Is there a clearly defined point where that happens, or is it more like a shades of grey thing, where we just all agree to say that a certain point is the distance we will discuss, for the sake of making discussions about the topic easier? Or is it a clear demarcation, like the difference between the surface of an ocean, and the shore? (I assume the atmosphere is subject to tides, just like the rest of the planet?)
Thanks,
https://en.wikipedia.org/wiki/Felix_Baumgartner
But did he?, I mean clearly 24 miles is an incredible feat, but, I have had conversations with people who tell me that the edge of space is more like 50 miles up.
I'm not trying to be funny, I really have been wondering.
I understand that the atmosphere just keeps getting thinner, until at some point the Earth's gravity can't keep the gasses from being blown off by the solar winds. Is there a clearly defined point where that happens, or is it more like a shades of grey thing, where we just all agree to say that a certain point is the distance we will discuss, for the sake of making discussions about the topic easier? Or is it a clear demarcation, like the difference between the surface of an ocean, and the shore? (I assume the atmosphere is subject to tides, just like the rest of the planet?)
Thanks,