The discovery overturns traditional models that predicted gas giants in outer orbits and suggests planets can form in gas-poor environments.
A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.
The arrival of 3I/ATLAS in our solar system spawned multiple proposals for a rendezvous mission to study it up close. As the third interstellar object (ISO) ever detected, the wealth of information ...
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