Life on Earth is unique, but many of the conditions we believe are necessary for life may not be essential for its emergence.
Interestingly, the gravitational impact of gas giants can actually increase the risk of catastrophic impacts on nearby worlds rather than providing protection.
The timeline of life's emergence on Earth challenges the notion that a long cosmic history is necessary for habitable worlds to form successfully.
The properties we associate with habitability, such as a large moon or specific star types, may be less critical than previously thought.
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