# S3-Scientific Breakthroughs

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Episode 23: The Lunar Excitation In the season finale, drunk and heartbroken over Leonard, Penny calls him for a late‑night hookup, signaling that their relationship is far from resolved. Meanwhile, Howard and Raj set up an online dating profile for Sheldon as a prank, only to match him with Amy Farrah Fowler—a woman as socially rigid and intellectually intense as he is—quietly launching one of the series’ most important relationships