My friend Heidi mentioned she'd had a dream in which her baby boy was deteriorating before her eyes but she was powerless to do anything.

CNN: When motherhood becomes a nightmare

Would these type A-plus overachievers -- so focused on realizing their lifelong dream of spaceflight -- really risk it all for one last tall boy after last call?

CNN: Shuttle commander: Alcohol report lacks facts

One person who has no doubt that Djokovic will eventually fulfill his dream is the Serbian's first coach Jelena Genric, who spotted his incredible potential when he was a young boy learning the game.

CNN: Djokovic wants Federer's crown