Explore the incredible defense system of the human body, from the different jobs and components of the immune system to its response to infections and how it keeps you safe.

A woman captures a moment in time with her camera, freezing a memory forever.

German Chancellor Angela Merkel is seen eating spaghetti in a rare casual moment, showcasing her down-to-earth personality.

Watch Dwayne Johnson showcase his DJing skills, blending his charisma and energy behind the decks.

A heartwarming moment as a man gets down on one knee to propose to his girlfriend, capturing the surprise and joy of the special moment.

A lighthearted moment with Arnold Schwarzenegger, the actor and former Governor of California, completely covered in flour.

Learn how to safely and effectively fire a gun without revealing your position or identity.