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Helium escapes into space?

Posted by: Gotch on November 17, 1999 at 20:50:41:

By what mechanism does helium escape into space? It is lighter than other gas molecules, thereby enabling it to rise to the top of the atmosphere, but it does not have antigravitational properties which enable it to "escape" into space.

Follow Ups:

Yes. So does hydrogen. Gideon Hallett UK November 17 1999 (4)
- A temporary point to you on this one. Gotch November 18 1999 (3)
  - Until you can prove me wrong, it's more than temporary. Gideon Hallett UK November 18 1999 (2)
    - It still isn't evidence Gotch November 18 1999 (1)
      - Falsification of your view reinforces mine. Gideon Hallett UK November 18 1999 (0)
Wouldn't the rest of the outer limits also likewise escape into space? Gotch November 17 1999 (0)