I agree with BM, I already know that mass is entirely different. The planet may have types of rock that are more dense or something (parts of Earth contain limestone, which is quite permeable), or a heavier atmosphere, being that the planet is larger, and has a greater gravity to hold more of an atmosphere.
I think that the fact life is out there somewhere is a definitive yes, just not anywhere near us, and by that I mean thousands of galaxies away, more or less. The chances of this planet containing life are probably quite small, and the lifeforms there being anywhere near as advanced as our planet's lifeforms are fairly small, too.
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