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.

Debunking the myth: Space Shuttles were designed for low-Earth orbit, not lunar missions. Explore the facts behind the Space Shuttle program.

A heartwarming scene of children enjoying a meal at a restaurant with family or caregivers.

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

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Ariana Grande makes a stylish appearance on the blue carpet, waving to fans and posing for photos.

Watch as a talented breakdancer showcases his skills while balancing a glass of water on his head, without spilling a drop.