What would aliens really look like? Explore science-based evolution, symmetry, bizarre worlds, and intelligent life ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

A global catalog shows how creatures across the tree of life balance rigidity with flexibility in remarkably consistent ways ...