The 2007 Sci-Fi Film

The ending: Capa, despite knowing he's going to die, puts on the spacesuit, and jumps out of the Icarus II. We get a distant shot of the spaceship and the payload, and between them is Capa, who's like a tiny ant in space as he blasts himself towards the bomb that will revive the dying sun. After a brief reunion with Cassie and a final fight against Pinbacker, Capa activates the bomb. The sun explodes into the payload, and Capa is bathed in the rays of the reborn star, smiling with pride and wonderment.
- In the film, Capa's jump is an awesome moment within the ending itself. The script literally points out that this moment is meant to be awesome and a representation of man in the face of overwhelming odds.
Mace's plan to get himself, Harvey and Capa from one shuttle to another with only one suit.
Mace's making sure Capa is the one who will wear the one space suit the three men have together, for the aforementioned jump from one shuttle to the other. Because even though Mace dislikes Capa, he acts on the fact that Capa's survival is more essential to their mission than his own.

The Book (No relation to the screenplay-based novelization of the abovementioned film.)

When Sunshine stakes a vampire using just a table knife. Which is supposed to be impossible.
Revealing her lineage to Con, and then getting him out and about in sunlight. Another supposedly impossible thing she does.