From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

One that caught attention from many was a type of sea mollusk that washed ashore on South Padre Island in late May.

The series turned a voyeuristic lens to people with unusual habits, but it did raise awareness of various compulsive disorders.