Well, Nick?

You presented an interesting hypothesis about the possibility
that since this newly-discovered 'super-Earth' orbiting Gleise 876
is probably 'tidally locked' with the star it orbits; and that one side
is baked, and the other side is frozen, atmospheric gases
would freeze out on one side and would be searing-hot on the other side.

Then there presents itself the possibility of a "happy medium' in the terminator
zone between [a habitable zone?]. You can call it a planetary 'Goldilocks' region.

Have I restated your hypothesis correctly, Nick?

Here's another interesting possibility:
This Gleise 876 planet [super-Earth] of about 7 Earth masses, and perhaps
neary twice Earth's diameter, if 'tidally locked' with its star, would rotate
on its axis "once" every two days, coinciding with its orbital period, and it would
thus rotate on its axis with an equatorial rotational velocity close to 450 meters/second.

QUESTION: What other planet has an equatorial rotational velocity of about 450 meters/second?
CLUE: You're standing on it.

This presents an interesting possibility. Does the super-Earth orbiting Gleise 876 have a strong magnetic-field
as a result?