29 of This Year's Steamiest Movie and TV Moments

Over four seasons, Michael and Alex have taken the phrase "star-crossed lovers" pretty literally. Even once they've gotten together for good, plenty's still keeping them apart — this time, a mysterious alien force and an alternate dimension. After Michael ventures into a dangerous pocket dimension to find Alex, they're reunited with a relieved, romantic kiss that reminds us about the chemistry that has always made this ship special.