Modern Engineering Marvels on MSN

What an interstellar comet’s chemistry reveals about alien star systems

Comets are often treated as leftovers, but sometimes the leftovers become the primary focus. That is the case with 3I/ATLAS, ...
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Could alien-built objects already be in our system?

A mysterious object has been identified as an “interstellar visitor” by NASA while shooting through our solar system, sparking discussions about its origin and nature. A Harvard astrophysicist ...