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If this is true, would that mean that life is rare in the Universe? I would mean that we are an anomaly in that we have the perfect size and core materials to
by vivekd 7y ago
If this is true, would that mean that life is rare in the Universe? I would mean that we are an anomaly in that we have the perfect size and core materials to be able to hold onto some of our atmosphere, but not so big so as to turn into a gas giant.
Kinda sad to think that there may be nothing but space out there.
- petschge 7y agoA planet can have a atmosphere that is sufficient for life, but of negligable mass compared to the core. In our solar system we have at least 2.5 examples of that: Earth, Venus and Mars. And that is not counting ocean moons with an ice crust such as Europa that might be hospitable to life as well.