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A detailed review of the Samsung Galaxy Z Flip 4, covering its design, display, performance, camera, battery life, and price to help you decide if it's the right smartphone for you.

Witness a breathtaking rainbow-colored aurora in space, captured by NASA's cameras, showcasing the vibrant colors of charged particles interacting with the Earth's magnetic field.

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.

Watch Dwayne Johnson showcase his vocal skills in this entertaining video of him singing.

A mysterious grey alien wearing a cowboy hat stands in a field, with an unknown liquid dripping from its fingers to the ground, set in the 1890s.

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